Eclipse: All my projects disappeared from Project Explorer - eclipse

It seems like all my projects (except one) disappeared from the view Project Explorer.
I'm using Eclipse Java EE IDE for Web Developers.
Version: Helios Service Release 2
Build id: 20110218-0911
Note: all the projects are present on the file system.
How to bring them back? Any ideas?

This happened to me. I'm still not sure how, but the reason was that my workspace meta data had become corrupted, probably due to Eclipse being improperly shutdown. The solution, as explained here, is to:
Note, steps 2 & 3 are optional if Eclipse isn't crashing, but just not showing any projects.
Close Eclipse.
cd /home/user/workspace/.metadata/.plugins
mv org.eclipse.core.resources org.eclipse.core.resources_bak
Start Eclipse
Do File->Import
General->Existing Projects into Workspace
Click the "Select root directory" field and browse to each subfolder in your workspace folder, and import.
For me, this was very tedious, since I had several dozen projects in my workspace, but it's the only solution I found short of restoring my entire workspace from a backup.
Edit: This answer is now quite old, and better solutions may now exist. Although I haven't had need to try it, I recommend attempting #antonagestam's solution first, as others have suggested it may be faster and more effective.
Edit: Since it's fairly simple, I'd recommend trying antonagestam's solution first. However, this problem recently re-occurred for me, and that solution did not work in my case. But neither did it interfere with this solution.

I had the same problem in Aptana, all of a sudden my projects were gone. Solved it by going to the drop-down menu in Project Explorer and going Top Level Elements -> Projects.

Go to
File --> Import --> General --> Existing Project into Workspace
Then,
In Root Directory Enter the workspace path where all your projects saved & click refresh as below
And Click Finish

I was having the same problem for Android projects in Eclipse. This link was very helpful in restoring the missing projects.
Go to 'File->Import->General->From Existing Project'.
Select the root folder to the Workspace.
Click on the 'Refresh' button.
Select the required projects and click 'Finish' button.

I had the same problem in Luna, Suddenly my projects were gone in start-up.
I solved this by select Deselect working set option in the drop-down menu in Project Explorer.
Note: I post this answer even this is not a right answer for this question.
Since I search for Luna and came here,while trying with discussed things I was find this solution. This may help others.

Click on Windows > Open Perspectives > java
, Press Ok. Project Explore will come back on screen..

My solution is
open view menu and select "Top Level Elements" and set "Projects"

If any of the previous methods don't work for you then delete your old workspace, create a new workspace and put it by default. You can do this by launching Eclipse twice - the second time it asks you for the workspace ;). Then re-import all your projects there and say "problem, goodbye".

Mona is correct - Make sure that you have the task list set to show ALL as the image shows. Click the arrow to the left of the project if you want to re-factor your filter. Reset your perspective if you do not see the task list.

Today 22-03-2016, I check again this question and using ECLIPSE MARS I solved with:
Having Eclipse opened, go on FILE -> RESTART
Go on same workspace and I have all project on "PROJECT EXPLORER"
Sometime also this operation, will solve (Clicking on Projects dor see all project!!)
So Other solution is:

if you use the "Task List" view of Eclipse, it will sometimes try to hide files or projects that it thinks are not associated with a given task (i.e. any file that was not opened while you had a certain task selected as the current task). If you want Eclipse to stop hiding files
in that case, you can just delete all tasks.
Or you may also restart your eclipse and by just closing the project and then opening it again (from the right mouse click context menu) the files will be restored.
If that doesnt get your projects back then check the "filters option" (Click on right corner of Project Explorer tab and open context menu. Select Filters option from menu) and make sure that your projects type isnt checked.

you should check the active Working Set - make sure it is off.

When this happened to me I had somehow set the Project Explorer to only display Working Sets. I had none, so nothing was displayed.
To fix it, I went to the Project Explorer View Menu (next to the Minimize and Maximize icons in the Project Explorer), Top Level Elements -> Projects.
Thanks to #antonagestam for pointing me in the right direction.

It seems it happens to us all. I was happily hacking away at javascript, nowhere near all the nasty hibernate java stuff, and boom, "cant find org.jboss.logging.BasicLoging".
I havent touched anything!.
After an hour or so of trying to make that appear, restarting servers, mysql, eclipse, adding jars that weren't needed before,I deployed the fix all solution, the off button.
Then zap, no project.
(I am still none the wiser as to why calling Configuration() should now require jboss-logging...jar, maybe I needed it all along for when bad things happen)
My input is
use git, keep as little of your stuff in the eclipse workspace area as possible. Then just import project from existing git repo when eclipse loses it's marbles.
I also lost my server config. it's there but eclipse insists there no server config stuff and bombs. So make another one, I've expressed my feelings about eclipse in my new server name, and copy your apache xml configs (workspace/Servers/I_Love_Eclipse) over from the original perfectly good directory.

Not sure how/why, but this happened to me once when I added a task to Mylyn. Seemed that mylyn was filtering my projects. When I deleted the task they all came back.

None of the answers provided here worked for me. My Enterprise Explorer was completely grey and I couldn't even import or reimport projects.
In my .metadata.log I saw this error:
assertion failed: working set with same name already registered
So I deleted these file:
.metadata.plugins\org.eclipse.ui.workbench\workingsets.xml
Now I can see all my projects. I didn't have to add them back again.

I found a solution that worked better for me. Under my home folder I found a workspace/.metadata folder. I copied this folder into my eclipse workspace, replacing the .metadata folder that had been there. When I started Eclipse everything was back to the way I had left it - all projects present, all open files were still open, etc. Just like nothing had happened! I'm using Neon.

As a preliminary (before reimporting everything), here is a solution to recover working sets in which project were (if any).
I had more than 100 projects and each was in one of 14 working sets.
If your top level elements changes (accidentaly or not if it is a bug) from "Working set" to "Projects", you only see projects that are NOT in a working set, and if, as I do, you don't have any projects outside a working set, you think all is lost because you cannot see anything (blank package explorer).
So the solution is now obvious: click on the top left small white triangle MENU, than select "Top level elements", than select "Working sets".
You also have the possibility to rearrange the working sets list items.
Hope it helps
Unfortunatly the working sets were empty after the recovery, but at least I
recovered their names.
Config: Eclipse Oxygen.2 Release (4.7.2) with Java 1.8 on Windows 10.

Got this issue on returning to an Eclipse project on a VM after leaving it untouched for maybe a couple of weeks.
I started to apply the accepted answer, but when I got to the step of renaming the folder and had exited Eclipse, I saw there was an instance of Eclipse still running. I realized Windows had for some reason started a second instance of Eclipse when I hit the taskbar button. The second instance had been unable to access the workspace while the first instance was using it.
Once I undid my folder rename, and closed and restarted the original instance of Eclipse, I was able to use File->Switch Workspace to get my normal workspace back.

Solution that Cerin provide, importing each time that this problem happens, could be boring.
So I've implemented a script that control if workspace setting exits: if not, restore it to default.
I have an eclipse shortcut icon on the top panel that execute:
/opt/eclipse/checkWorkspace && /opt/eclipse/eclipse
Script checkWorkspace is the seguent:
#!/bin/bash
ECLIPSE_CONFIG_PATH="/opt/eclipse/configuration"
ECLIPSE_CONFIG_FILE="config.ini"
ECLIPSE_CONFIG_SETTING="osgi.instance.area.default"
DEFAULT_WORKSPACE_PATH="#user.home/workspace"
ECLIPSE_LOG="/var/log/eclipse.log"
cd ${ECLIPSE_CONFIG_PATH}
function sedeasy {
sed -i "s/$(echo $1 | sed -e 's/\([[\/.*]\|\]\)/\\&/g')/$(echo $2 | sed -e 's/[\/&]/\\&/g')/g" $3
}
WORKSPACE_EXISTS=$(cat ${ECLIPSE_CONFIG_FILE} | grep ${ECLIPSE_CONFIG_SETTING})
# If workspace setting doesn't exists
if [ -z "$WORKSPACE_EXISTS" ]; then
echo "worskspace setting not exists, resetting to default." >> ${ECLIPSE_LOG}
newConf=${ECLIPSE_CONFIG_SETTING}"="${DEFAULT_WORKSPACE_PATH}
echo ${newConf} >> ${ECLIPSE_CONFIG_FILE}
else
# if setting exist but it is empty
vals=(${WORKSPACE_EXISTS//=/ })
length=$(echo ${#vals[#]})
if [ "${length}" -lt 2 ]; then
newConf=${ECLIPSE_CONFIG_SETTING}"="${DEFAULT_WORKSPACE_PATH}
confToReplace=$(echo ${vals[0]})
sedeasy ${confToReplace} ${newConf} ${ECLIPSE_CONFIG_FILE}
echo "worskspace exists but is empty, resetting to default." >> ${ECLIPSE_LOG}
else
echo "Worskspace already set:" "${vals[1]}"
fi
fi
Maybe could be semplified, but works.

I tried many solutions. I found mine in the drop down menu of the Entreprise Explorer:
- Deleting org.eclipse.core.resources has no effect.
- "Top Level Elements -> Projects" was already checked for me; swtiching with Documents has no effect.
- Selecting all extensions in the filter option of the drop down menu has no effect at first sight, maybe it solve part of the problem.
The solution come from "Unselecting documents" (third choice in the Entreprise Explorer drop down menu). I think that choice reset the filtering of documents displayed in the Explorer.
Hope it'll helps
JN Gerbaux

Tedious but it worked for me (Kepler):
Using the OS zip utility, zip everything below the project workspace folder to a zip file, to be placed in a separate directory (will use c:\tmp\workspace.zip as an example).
Unzip workspace.zip to the c:\tmp directory. Assume there's a project folder called Project1
a. Ensure all the files in Project1 have Full Control permissions for Everyone or at least 777 permissions.
Remove all the project folders in the Eclipse workspace.
Recreate each project one by one according to its original type (Java, Dynamic Web, etc.). (Will use Project1 as an example.) Do not add anything.
In Eclipse, do File -> Import -> File System. Then select c:\tmp\Project1 as a source
Select the workspace Project1 as a destination. Do not overwrite any file.
In Eclipse, refresh the project and test it. It should work.

Also had this Problem.
My Solution was to uncheck the Box PyDev: Closed Projects, even if those hidden Projects are PHP and NOT Python Projects. (Strange BUG in Eclipse/Aptana???)
Be aware that even "Closed Projects" (a Topic above Pydev closed projects) is also unchecked. So you have to uncheck both Settings.
this: eclipse shows only "open projects" in project explorer

All of my projects were closed and I had hid the closed projects in the settings.
So to open projects go to top right view menu, and uncheck Closed Projects option. Assuming it is checked already.

Do the following steps
File --> Import --> Existing Projects into Workspace
Select the root directory as ur old root folder
Finish.
Yahoo.. There is ur old projects again in ur project explorer

1) File > import > Existing projects into workspace
2) Choose your workspace folder
3) select all of your projects
4) finish
All are OK with above way !!!

File - Import - Existing projects into workspace - browse - choose your workspase - done!

If Eclipse was killed during a shutdown, the projects database may become corrupted (the project database is normally located in: workspace/.metadata/org.eclipse.core.resources/.root/1.tree).
A message like this will be logged in Workspace/.metadata/.log:
!MESSAGE Could not read metadata for '.../.metadata/.plugins/org.eclipse.core.resources/.root/.markers'.
The data is lost. You need to import your projects again (File->Import ->
General->Existing Projects into Workspace).
The list of projects that were in the workspace can still be seen in .metadata/org.eclipse.core.resources/.projects/.
Projects located outside the workspace will have a .location file with the path to the project.

I also had the same problem.
file>restart.
Projects and modules appeared after restarting the eclipse, but faced new error;
An internal error occurred during: "AppXray Indexing...". java.lang.NullPointerException.
So it's good to be on safe side, import the project again in a new workspace.

if you go to Quick Access and type in Projects you will get it your projects back.

Related

Eclipse Re-Open once closed project

I am searching to find some answer my current actually presist problem.
I appreciate for any help and/or advice.
My problem is, I always delete projects once task finished. However, i delete project only Package Manager window and original project do exists in ADT work space.
When i want to re-open same project ecplise throws me error and says project is already in destination folder.
Could some one please tell me how can i re-open deleted projects?
Currently, i am copying entire project let's say to desktop and then re-import it into Workspace.
Is there any easy way to handle this?
The reason is that why i am deleting projects from my Project Manager because of too many projects are listing.
Regards
You don't need to copy the projects to another location. Just use 'Import Project' and specify the current workspace location. Eclipse will show you the deleted projects.
You can use 'Working Sets' to group your projects. You can tell Package Explorer to just show one working set or to show the working sets at the top level of the tree.
You can also have multiple workspaces and use 'File > Switch Workspace' to switch between them. I currently have 8 workspaces for different projects.

Eclipse project already exists

I deleted a project in my workspace, then tried to create a new project with the same name. Eclipse told me that it overlaps the location of another project (the one I just deleted). How do I fix this?
This is what I did.
Go to Window --> Show View --> Project Explorer
Then right click on the project name that you want to delete and Click Delete.
In the dialogue box, check 'Delete Project Contents on disk'
It worked. I was able to create the project with same name again.
I had the same problem with the IBM Integration Toolkit, which is based on Eclipse. The problem also occurs in Android Studio, which is also based on Eclipse. crazyscot seems to have the right answer at A project with that name already exists in the workspace eclipse and his solution worked for me.
You need to open up the Project Explorer view (it may already be open) and delete the project from within there.
Go to Window >> Preferences >> General >> startup and shutdown >> workspace
theen select Recent work space then click Remove and close the program and open it again
You have to manually delete the project folder from your "workspace" directory (wherever you have defined it to be).
there will be a file .project xml file in the project and its content looks like
<projectDescription>
<name>ProjectName</name>
.
.
.
</projectDescription>
here ProjectName is the name of project you can change it to whatever you want.
First you create a project in some other location with the same name of your project as before.
Now delete this project by right clicking on project > Delete.
Do not check the dialog "Delete Project Contents on Disk".
Now you move your newly created project through file manager to the original location(location where you are not able to import your project).
Then import the project from the newly moved location(location where you are not able to import your project).
After deleting the project from Eclipse IDE(Project Explorer), remove it from work space folder as well. Workspace folder path - C:\Users\username\workspace (it can be different for your system).
try moving the project and try importing
go to tab window>preferences>search workspace> then make sure in last / is not in your recent workspace. Example-:/var/www/html
your url should like above.
With the same problem, I did a text search and found an XML file containing the name of the project.
I had copied the project from another project. Let's say that I copied project A to project B. Although the XML file in the new project (B) was named for project B, it had an entry which still referred to project A. When I edited it, the problem went away.
Simply remove the .classpath and .project files and try.
Go to create new project. Once there, select the project type. Mine was PHP project. The new PHP project screen will popup. There, click create a new project and give the project name which you used before. Then press finish.
If you need a 100% risk-free strategy, just right click the project and select 'export', and put it back where it was. Then, you can either continue using the project in your current directory (with no more popups) or switch over to the directory you were working in before. The side effect of the former is that you will have a duplicate project taking up a small amount of space. If anything, finish up what you need to do in the current directory, then pull (via git) from the original directory. Or, delete the project in the current directory, and import from the original directory to the target directory for the second time - though now, since it is the proper way, the issue will be resolved.
I met this problem just and I just figure out the main reason cause this problem is your copying pom.xml from another already existing project in your workspace.
So the way is find the pom.xml in your project folder and rename <name>conflicted Project name</name>.
In 2021, Using Ubuntu 20 here is simple way to remove it.
In Eclipse main Menu
Window -> Preferences
In the search type recent workspaces
Select and delete the project. click apply changes
Removing a project from an Eclipse workspace does not delete the files by default. You have to check a checkbox for that. This is a Good Thing. As you have not checked the checkbox, you have to delete the files manually using e.g. a file manager.
Note that there are files starting with . in an Eclipse project directory, such as .project. They are considered hidden files on Unices.
go to the folder and delete the file .project. This worked for me.

Eclipse won't show files in package explorer

I don't know what went wrong, because this was working before, but all of the sudden I don't have any files in my eclipse package explorer.
The workspace path appears to be correct and the file permissions are correct.
Can anyone think of what's wrong?
Refresh the project
If that does not work, close and open the project again.
I had the same problem (Probably caused when I cancelled a copying to my Dropbox folder)
I only needed to click File → Import → General → Existing Projects into Workspace and select the missing projects in the window that appeared.
Workaround
Create a blank workspace
Navigate to (File > Switch to workplace > Other)
Clik Browse > Make new folder
Click Ok in browse window
Click ok in create workspace window
Import your existing project into the new workspace
Navigate to File > Import
Click General > Existing project into workspace
Click Next
Browse and select your previous project
Click on Finish
Congrats! Now you can see your project in the package explorer by importing it.
Project Explorer -> click on "View Menu"
-> Top Level Elements -> Click on "Projects"
Don't know what causes the problem, but found a way to get the files back into the package explorer.
If you go into the path of your workspace and find your projects, then you can pack them all into a zip archive file, and from this zip archive file you can import your projects again by using the File → Import → General → Existing Projects into Workspace menu.
I don't know what causes the problem, but in my case I think it have something to do with me having my workspace in a dropbox folder.
ps. I don't know if you actually can take more than one project into one zip file and make it work, I have only tried it with one project pr. ZIP-file, but it shouldn't matter.
In 2020 on OSX I just went to Project -> Refresh and wham! my files appeared.
I had started the wrong installation of eclipse. When I started the correct installation my code showed up fine. I have both C++ and Java EE installs.
Just refresh all the projects, you able to see all missed files after you import from a workspace.
1) Make sure that you use the right workspace.
2) Choose your "workspace"-Folder "/YourWorkspace",
NOT your project folder"/YourWorkspace/yourProject"
Alternatively delete your project from your
"YourWorkspace>/.metadata/.plugins/org.eclipse.core.resources/.projects/PROJECTNAME/.location"
and restart.
Hope this helps
I had the same problem. I was not able to see the imported files in Eclipse, but there were visible in File Explorer.
After a while, I noticed that all the files were imported. They had their names changed from myFile.class to ._myFile.class.
I deleted all the imported files from my workspace by using File Explorer.
By using the same File Explorer, I copy-pasted the folders/files in the workspace.
Then in Eclipse, I refreshed the project (F5 or click-right -> Refresh or File -> Refresh)
I faced the same issue and the reason was that I choose double click on Eclipse Icon, then I need to choose Work Space.
Here I made mistake. You do not need to select folder in which has all your project files
e.g //Desktop//User//Selenium//S1A//all files related to project
In that case for workspace you choose //Desktop//User//Selenium, import your project by clicking Import for eclipse 2020 and choosing File path //Desktop//User//Selenium//S1A.
may be a rare case like in mine, but if you played with colors this may be an issue and especially, if you changed theming and did not restart, which may correct some problematic visual stuff.
Import>Existing Projects into Workspace> Select root directory> Select the folder
The solution that helped me:
create a new folder (=Java-Package) with a new name. I used the System-Filemanager.
copy the disappearing files to the new folder (=Java-Package).
correct the links (JavaCommand 'import') to the new folder.
delete the old files and the old folder.
As the problem happened in my case:
I am using Eclipse IDE 2021-12 (4.22.0) for my Java project.
After importing an existing Project into Workspace all was fine.
While building the project, same files disappeared from the 'Project Explorer'-Tree.
These files still do exist as the System-File-Explorer shows. So no file got deleted. But no more listed.
After Refresh (F5) most of the files got listed again in the 'Project Explorer'-Tree.
Without doing anything an Eclipse background process let files again disappear from the 'Project Explorer' - Tree. Compilation of the project leads to missing files.
Sometimes 3 files disappeared. Some seconds later more files disappeared. Sometimes it leads to an empty Java-Package.
This disappearance of some files happened without any input from me. It was done by the Eclipse background process. It felt like watching a movie.
What does not help in my case: Restarting of eclipse, Close and Open the project, editing the files.
In my case, the problem was due to an unwanted nested project in a subfolder. There is a pre-set filter that hides folders in that case.
For some reasons, the sub project was not shown in Project Explorer.
My solution :
delete the project (without deleting project contents on disk)
import existing projects into workspace, and do not import nested project.
You might have filtered the resource out of the project.
Select the project, right click, choose properties.
Under Resource, choose "Resource filters" - check that the name of the folder or the files was not filtered in the list under "Exclude all" (if there is one)

Eclipse projects not showing up after placing project files in workspace/projects

I've searched for 2 days and can't find anything. I find things that are close, but not what I need.
I got a new computer recently and copied all of my projects over to my new computer.
I opened Eclipse and generated a workspace, which I then closed out of Eclipse and copied my projects into the workspace/projects folder.
I reopen Eclipse and my projects do not show up at all in the package explorer.
I know that I have the correct folders in the correct directory.
The closest thread I found to this is: Eclipse - Import an existing project?
but even that didn't help, my projects already meet that...
I have tried refreshing, reopening, fooling with working sets, etc...
Just because you have a project inside the workspace directory doesn't mean Eclipse opens it or even sees it automatically. You must use File - Import - General - Import existing project into workspace to have your project in Eclipse.
For Juno: (With Source in E:\workspace and destination in C:\workspace)
Copy project directory in its entirety to the workspace directory.
(e.g. Copy E:\workspace\HelloWorld C:\workspace\helloWorld)
Start Eclipse.
Perform: File --> Import
Select: General -- > "Existing Project into Workspace"
"Next >"
Check "Select root Directory"
Select with "Browse Button"
Select "C:\workspace"
A list of existing projects will appear. Just check the ones that are in Bold (To Be Imported) then press the "Finish" button.
Review the Package Explorer and your copied projects should now be there.
This problems comes while .metadata of current workspace has been corrupted due to shut down Eclipse Unexpectedly. So if you face this problem just do the following steps:
Create a new workspace.
Import your existing projects to your new workspace.
you made it!
I had the same problem over and over again the solution that a have found works for now
Close Eclipse.
go to workspace.metadata.plugins
remove org.eclipse.core.resources
Start Eclipse
Do File->Import
General->Existing Projects into Workspace and import all the project from the workspace
Netbeans allows you to do a simple filecopy.
As you know, Eclipse doesn't work like that. You must explicitly "import" files and projects.
If you do import, and if there are no problems, then they should show up.
I'd consider:
a) making a backup of your existing workspace
b) deleting and reinstalling Eclipse
c) Trying another "test import"
You put them in the workspace/projects folder. You should put them directly in the workspace folder and then do an Import Existing Projects into workspace.
in Eclips the Package Explorer
Right click on any viewable project and select Show in -> Project Explorer
Package Explorer -> Right click -> Show in ->Project Explorer
you should be able to see all the imported projects in your Eclipse workspace
Even I had also observed the similar problem. I had closed my eclipse project because of some reason and on restart some of my file added were not visible in explorer even though corresponding file were existing.
Following solution worked for me:
Select whole workspace (Ctrl+A) ==> Righ click and press Refresh.
Or you could try:
Go to File -> Switch Workspace
Select your workspace (if shown)
As I had imported my project from a "git clone", I had to select File->Import-> Git->Project from git -> Existing local repository
Here's a specific problem I ran into when downloading a project from the internet.
Make sure you unzip correctly if it's zipped, you can sometimes get an extra level.
Make sure you place the project in the project file, not directly in workspace.
See if .project and .classpath have been renamed to _project and _classpath. You can't rename them directly so open a text document called .classpath and paste _classpath 's contents in there, saving as all files, not a .txt. _classpath can be opened with notepad.
Import the project from the file workspace. It will look for a folder called projects, your's should be inside it.
Hope this helps :)
The following worked for me.
Create a new project in eclipse.
After creating a new project in
eclipse, right click and select import.
General Import > File System
Select all the folders under your project except the root one. Click
finish.
This would create the required meta data and other internal eclipse project file system which will display your project's files.
You can also import the project directly as a file system. Follow the above steps if you are unable to import it directly.
Hi i also come across same problem, i try many options ,but finally the most easy way is,click of down arrow present inside ProjectExplorer-> customize View->filter-> unchecked close project.
And will able to see all closed projects.
I have tried many of the option suggested but at last importing project in new workspace solved my problem.
I think there is some problem in metadata files in old workspace.
I just wish to add one important detail to the answers above. And it is that even if you import the projects from your chosen root directory they may not appear in bold so you won't be able to select them. The reason for this may be that the metadata of the projects is corrupted. If you do encounter this problem then the easiest and quickest way to fix it is to rid yourself of the workspace-folder and create a new one and copy+paste your projects (do it before you erase the old workspace) folders to this new workspace. Then, in your new worskapce, import the projects as the previous posts have explained.
Yeah.... i kinda see what you need. I just came across same problem.
Here is exactly what i did. Now, bear in mind, this some low level knowledge, since i'm just starting. I made my life complicated, so i needed solution. I kinda found it on my own, using different directions from above answers.
I switched from win 10 on HDD to linux on SSD, so i needed my few of .class and .java imported into new workspace.
First i made a mistake, not using export option on windows and i just simply copied all of files from src and bin folders on win 10 to src and bin folders on linux. Of course workspace did not see those files.
Solution was found in IMPORT tool (which i should have used right away).
I put all of files in src folder into zipp file, and moved this file to some arbitrary folder (Home folder in my case).
Go back to src folder and delete all of .java files (you won't be needing them anymore).
Then i opened my empty project and selected import from File menu in Eclipse.
In import window, under option General (first one) select Import Archive.
Now simply find your zip file, and Voila! All is where it should be.
Problem: After creating a PyDev Project, the project does not show up in "PyDev Package Explorer" ;(
Solution: This is what I do to see them all in "Project Explorer":
I am using Eclipse IDE 2019-12
click on "Resource" icon at the top right corner
Now you shall see all projects show up in "Project Explorer".
Tricky note: now if you click on "PyDev" icon, you will see less projects show up in "PyDev Package Explorer" Magic?
What I did wrong about it, I used "import" - > "Projects from Folder or Archive" because I thought it would be the same thing. You have to use "Existing Projects into Workspace". Maybe this helps someone.
I experienced the same issues and I just click on Window -> Show view -> then Project explorer.
Then I got my project that was inside my eclipse workspace.

Is there a NetBeans equivalent to Eclipse's Workspace

I enjoy using NetBeans, especially for development with Maven, however, I've found recently that I've been working with three different branches of the same code base in different parts of the development cycle.
One of the things that Eclipse can do is separate the projects into different workspaces, so I can simply start Eclipse with the workspace containing my Maven projects in the production patch branch or the trunk depending upon what I need to be working on.
I'd love to accomplish this in NetBeans, but haven't found a way to do so. Any ideas?
I am using Mac OS with version 6.7.1.
There is the option of project group.
In File > Project group.
In here you can create a project group based on a folder location, so any projects underneath this folder will be considered within this project group.
When switching between project groups only projects within are displayed, and it maintains the current status of opened files, etc.
Switching between project groups doesn't require closing the IDE.
Given those options I believe this would be equivalent to the workspace switching in Eclipse.
I've found two things:
First there is a "similar" feature. It involves using the userdir switch on the command line. The downside being you would need to restart your IDE rather than switching while open. I think I can live with that for the time being. I found the technique here for Windows:
Create a shortcut on your desktop to the Netbeans executable: C:\Program Files\NetBeans x.x\bin\netbeans.exe
Right-click on the shortcut and click "Properties".
In the "Target" textbox, add the extra parameter to the very end: --userdir C:\path\to\new_workspace
Click "OK" to exit the Properties window and double click the shortcut. Netbeans will launch and create/load the workspace at that location
Secondly, someone has submitted a feature to allow for workspace switching (or in this case userdir switching) from the IDE itself. Perhaps this will be rolled into 7.0.
Well Netbeans has a group so you can create a group of projects which you want to say put in a eclipse workspace otherwise.
So when you switch a group it's like switching workpsace in eclipse
I know, that this question is old, but I found it on google, while I was searching for a tool like the following:
http://plugins.netbeans.org/plugin/20677/project-group-toolbar
With that plugin, you can load different projects in your projects overview.
So you can have two or more projects open and change to another "set" of projects.
Neither projects or project groups do not work in a similar way as an Eclipse workspace (yet) as far as I know. When switching workspaces in Eclipse, all the files opened will be closed and the ones in the new project will be opened. In this way, all projects work as one entity. The netbeans project/project groups do not work in that way. I hope there will be such a feature soon cause that really helps if you have many windows open and you switch between projects
I'm looking for solution and finally use Project Group solution, this feature has been improved and easy to use.
Userdir is a good solution at first (i tried to use it first), but "workspace switching" feature doesn't exists, so I have to use different shortcut for different workspace. Finally I used Project Group
NetBeans' equivalent is the "Project". In your project explorer you can right click on the current project and close it. Then go to File > Open Project and select a different branch. You will have to create a new project from each branch of your code.