I can't open Activiti source code in netbeans It just says "Project folder is managed by a project Activiti. Instead of creating a new project just open it. If by a chance you just deleted the project Activiti then restart the IDE to reuse the folder."
I have restarted Netbeans and re-cloned the project but it still won't open.
And eclipse just says that the javac was not found in the build.xml.
Any help would be greatly appreciated.
The project folder does not contain a nbproject folder.
Try the following:
rename the pom.xml file to something else, e.g. pom.xmlzzzz,
create the project in NetBeans,
rename pom.xmlzzzz back to pom.xml once the project has loaded in NetBeans.
I've just hit the same problem with a different project and this is what fixed it for me.
Netbeans creates a folder in your project named "nbproject". Once you delete that, restart the IDE and you're good to go.
Go to the folder containing your project
Delete the folder named nbproject
Restart Netbeans
Try creating your project again from the original folder
Related
I am using Eclipse Indigo, and after having successfully extracted my project folder into my Eclipse workspace, it does not show up in the package explorer. I tried refreshing eclipse and restarting it, to no avail. I am 100% certain my eclipse is using the right directory and the project is in it.
What could be the problem? Thank you.
EDIT: "import projects into workspace" worked for me, but why was that necessary?
Files in the directory are not automatically picked up by the package explorer. You need to import them.
Try using the File > import, then choose
Existing Projects into workspace.
There is a checkbox that says "Copy projects into workspace" which copies it to your workspace if it happens to be in a different folder. If you start with your files in another folder, you'll see how it's copied and set up with configuration files in your workspace directory.
To answer the question, "why is it necessary to import?" you have to realize that the Eclipse workspace is just a logical container for projects, not necessarily the physical container for them.
Also realize that a directory of project-related files does not make an Eclipse Project; Eclipse must be given or generate it's own set of configuration in order to understand a project (minimally, for Java projects, .project and .classpath). Without those, Eclipse has no idea what to do with an arbitrary folder that you call a "project." That's what the Import or Create Project wizards are doing under the covers, generating those config files.
I delete the whole .metadata folder by mistake, so my projects in eclipse cannot run at all, and there is no backup for .metadata folder. what should I do to fix this ?
Thanks!
If you don't have too many projects you could do this:
Open eclipse with the same workspace as before.
Create a new project with the exact same name and working directory as your previous project.
Repeat step 2 for each project.
Eclipse will find the files, but if you had any additional settings you might have to add them manually.
Should renaming a project in Eclipse also rename project folder on file system ?
My project file system name remains the same even when I rename the file on Eclipse.
Should I manually rename the project on the file system to same on Eclipse ?
It appears that renaming a project will only rename the underlying filesystem directory if the project was created with the "Use Default Location" checkbox selected (meaning the project is created in the workspace directory). If you create a project and specify a custom location outside the workspace, renaming that project in Eclipse does not rename the project's host directory. In that case, you'll probably want to:
Rename the project in Eclipse (which will update any internal references and the .project file)
Remove the project from your Eclipse Workbench view (making sure that the "Delete file contents" option is NOT selected in the delete confirmation dialog).
Rename the project's directory in your filesystem.
Import the project back into your Eclipse workspace.
I was surprised to learn this (I tested it with Eclipse 3.7), but it seems to be logical to me. The idea is that projects in the workspace folder are considered to be "under Eclipse control" as opposed to projects that are located in arbitrary places on your filesystem.
Use Refactor to rename the project name. It will rename the file/folder in filesystem as well.
Menu -> Refactor -> Move... (Shift + Alt + V).
In this window you can change name of the folder name and also change the path completely.
If the folder name is important, then change it manually. Keep in mind that you will have to re-open or re-import the the project into eclipse. After you rename the folder, Eclipse won't know where to find it.
In Eclipse Oxygen (4.7) the Move option is greyed and renaming the project does not rename the directory. However, if you switch to the Navigator view (may need to find it under Window > Show View > Navigator) the Move option will be available and it will rename the project's directory.
This is a lot faster than having to recreate the project or re-import it.
If your project is a Maven project to rename, do steps as followed:
Open Context Menu on your project > Refactor > Rename Maven Artifact.
Change Group or ID.
Check "Rename Eclipse project in Workspace".
press OK button.
Update maven project by Context Menu > Maven > Update Project.
Using eclipse Neon 4.6.3, renaming does not work. You will have to do what E-Ritz said in his answer.
It is also worth mentioning that if you are importing a project as a Maven project (via Import... -> Existing Maven Projects), the project name will be taken from the pom.xml rather than the folder. So you should also change the <name>my-project-name</name> part of the pom
I've installed NetBeans 6.9.1 and installed few updates for it.
Then I've created a new project from existing sources. After a few changes I've closed it. And now I am having an error, when trying to open a new project from existing sources (the same files):
Sources directory is already netbeans project (maybe only in memory).
After Googling it, I noticed it happened not only with me. But I didn't find the correct solution. I've tried to restart the IDE, I've tried to restart the PC, I've tried to reinstall NetBeans. Nothing helped.
Thank you!
I was having the same problem:
Sources directory is already NetBeans project (maybe only in memory).
Netbeans creates a folder in your project named "nbproject". Once you delete that, restart the IDE and you're good to go.
When you create a NetBeans project from existing sources, NetBeans uses the same directory to add its own files: a netbeans folder with .proj files.
Solution: delete the netbeans folder and restart the IDE. Opening a new project should now work.
Go to the folder containing your project
Delete the folder named nbproject
Restart Netbeans
Try creating your project again from the original folder
This means the project folder is already a netbeans project. So instead of adding it as a new project open it as
This happens(i believe) because netbeans tries to version control the files created or edited.
Under the project folder netbeans create a netbeans directory just delete it . This has been tested in Ubuntu. Then you can import your project if php then php using existing sources.
Click File >> Recent Projects > and you should be able to use edit it again. Hope it helps :)
On Windows at least none of these answers work (for me anyway!). I have found the only way is to copy an existing netbeans project folder in to your new project and manually edit the xml project name.
I also opened the private/private.xml and removed the open files xml just incase these caused problems.
Once I'd done this the project works as normal.
I checked the "Put NetBeans metadata in separate directory" tick and it works fine.
This is in 2. Name and Location after you choose PHP from existing source
In my case my project root directory consists ".project". This contain the XML reference of the project name.
By removing this, i am able to create a project.
Usually this happened when we copy source code of a already created project and copied in different folder and try to create a project from it. as netBeans create its folder nbproject in our project folder this folder also get copied with our source code and it give error "Sources directory is already NetBeans project (maybe only in memory)" remove this folder from you newly copied folder and voila you can create a new project.
If this is your own source code and you already have a Netbeans project folder with your source files you should just start with:
File | Open Project...
not
File | New Project ...
because the project is not new.
If it helps anyone else, I had the same problem and the solution was to reinstall NetBeans.
I had tried all sorts of fixes: Deleting the NetBeansProjects folders, checking/unchecking "Put Netbeans metadata in a separate directory", killing/restarting NetBeans, restarting the system, etc. Nothing cleared the message...except the reinstall.
The advice here about removing the nbproject directory is not quite the whole story.
What Netbeans seems to do (and we are guessing at reverse engineering here) is to look for an xml file which has opening and closing project tags in it. This it concludes is evidence of an already existing project. Now if your files have an nbproject directory there, that will contain a project.xml file which contains the said tags. So removing that will do what you want.
But, my files don't have a nbproject directory but still NetBeans tells me there is an existing project maybe in memory. The reason is: my files include a file called pom.xml and that contains the said project tags in the xml (it was created by an entirely different system). Once that xml file is removed, then NetBeans will create an html project for me importing my code.
In sum: look through any xml files in you existing code, and be wary of project tags.
This happened to me when I tried to import an Eclipse project in a brand new NetBeans 7.2.1 install on Ubuntu 12.04LTS.
I mistakenly selected the import projects from workspace (the first option in the import wizard's opening pane) on the first attempt, and it opened the project in the original Eclipse workspace path (which was on a usb stick).
From this, I then realized that I actually need the second option - import project ignoring project dependencies, which lets you specifically choose source and destination folders. After closing the project, I tried to import again with the proper option, but it didn't work.
From then on nothing I did helped - restart the IDE, move the source folder, nothing. There was no nbproject folder in the project or /var/cache in the user folder to delete (in-fact there was no nbproject folder in the whole file-system).
Since restart didn't work, I'm guessing that there is a garbage project entry somewhere which Nb reads (See Martin Frické answer above).
After googling along the lines of 'netbeans clear memory project cache' with no success, I opted to reinstall NetBeans -
sudo /usr/local/netbeans-7.2.1/uninstall
sudo ./netbeans-7.2.1-ml-javase-linux.sh
which solved it.
If you are on a Mac, press command shift G and in the box type /users and then go, next click on your user name and navigate to netbeansprojects and open it. Then delete the ones in there that are causing problems. You can then create your project.
Note: I had moved my wordpress folder to my desktop trying to figure this out, so I dropped it back into the origional location and it works fine. So if you did this, just replace the wordpress folder after deleting the problem projects from the netbeansprojects folder and its contents back to the original installation folder.
Hope this helps...:)
This is what I did to solve this error:
1) I copied a folder named "folder1" (and I called the new folder "folder2"). "folder1" was a Netbeans project so it had a folder called "nbproject" inside it.
2) When I tried to create a project out of the "folder2", Netbeans threw an error "Sources directory is already netbeans project (maybe only in memory)."
3) Inside Netbeans delete the project of "folder1". Then, delete the two folders named "nbproject" (one is inside "folder1" and the other is inside "folder2").
4) Inside Netbeans, create two new projects: one for "folder1" and another for "folder2". The error should not appear anymore.
copy an existing netbeans project folder in to your new project and manually edit the xml project name.
reinstall netbeans
copy/move all files/folders (except nbproject/ folder) to a new folder for your project, with a new name.
Try to create a new empty project; then you can copy the public_html to the new project folder and it will appear .
I faced the same issue:
Sources directory is already NetBeans project (maybe only in memory).
The solution is:
Netbeans creates a folder in your project named "nbproject". Once you
delete that, restart the IDE and you're good to go.
I am using Eclipse PDT 3.5 on Vista (32 bit). It works, though eclipse needs admin rights to execute. This annoys me, but I accept it.
But: every now and then (I am not sure, it may even be everytime I want to open a project), I get the error message "The project description file (.project) for my project is missing.".
It is NOT missing, it is in the main folder of the project. It has no special flags set (it is not hidden, nor system file, nor write-protected).
This is for ALL projects I have in my list. The only solution I have found so far is to delete the project from eclipse an re-add it. This is somewhat annoying.
What can I do?
EDIT: The workspaces are on a server volume. Can this be the problem? I used Eclipse 3.3 before, and there it was no problem with the server paths. And the server volume is mapped to a drive letter.
I've found this solution by googling. I have just had this problem and it solved it.
My mistake was to put a project in other location out of the workspace, and share this workspace between several computers, where the paths differ. I learned that, when a project is out of workspace, its location is saved in workspace/.metadata/.plugins/org.eclipse.core.resources/.projects/PROJECTNAME/.location
Deleting .location and reimporting the project into workspace solved the issue.
I had the same problem and in my case .project file was also present in the project directory and had correct permissions.
This problem happened to me after I closed and reopened multiple projects quickly one after another and Eclipse tried to rebuild them at the same time.
In my case Eclipse lost .location file in the workspace directory for 2 out of 5 projects: <workspace>/.metadata/.plugins/org.eclipse.core.resources/.projects/<project name>/.location
I've followed instructions on How to get project list if delete .metadata accidentally and imported the project in the workspace manually via File :: Import :: Other :: General :: Existing Projects. After that .location file was created again and Eclipse stopped complaining.
I had the same problem, and I haven't gotten that error since I close the project before I close myEclipse and don't tidy up the default location.
My project source and compiled files are outside the default workspace but there are stubb folders created by default by myEclipse in the default workspace. When I setup the project, there are two .project files - one in the default workspace that points to the working dir, and one .project in my chosen directory.
If you move the files for whatever reason manually, then Elipse lost the reference and output a missing project file error, but the reason is thaty you move manually the files and Eclipse lost the reference
I am using Eclipse 3.5.1 on Ubuntu. After rebooting my machine my projects in PHP Explorer view were giving the warning that the .project file was missing. The problem was that the external directory where my projects are hosted was not mounted on reboot. So I did a mount -a from the command line and the Eclipse recognized the files.
If you only want to checkout and you delete the folder from the workspace you also need to delete the reference to it in the Java view. Then it should checkout as if it were checking out for the first time.
<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
<name>Lynxster</name>
<comment></comment>
<projects>
</projects>
<buildSpec>
</buildSpec>
<natures>
</natures>
</projectDescription>
in the name tag give the name of the project folder
and save this file with .project extension
& paste it in the project folder.
this worked for me.
In my case i have changed the root folder in which the Eclipse project were stored. I have discovered tha when i have runned :
cat .plugins/org.eclip.resources/.projects/<projectname>/.location
Martin Encountered the same issue with a Minecraft Mod project when I changed the Main folder location.
Normally I would open the project like this
This is how my path looked when I started the project
I got the same "The project description file (.project) for my project is missing." Error.
I later found the .project file in the main folder like this.
This is the location where I found the .project file
I found that going eclipse to "File->Open Project from File System or Archive" and navigate to your main project folder with the .project file solved the problem.
My project is already included
This is my first post in here hoping it can help you out, Martin.
I created a new workspace and imported old projects. I just didn’t open this workspace for a long time, I don’t know why this problem happened
In my case it happened cause I accidentally removed eclipse metadata files.
So I fixed it by removing the project from eclipse, but without deleting files from disck.
And then reimport.
If you keep a backup of your worskpace folder, then all you need to do is restore the following folder from the backup:
workspace/.metadata/.plugins/org.eclipse.core.resources
It worked for me after I created and switched to a new workspace and copied my codebase there.