Eclipse IDE for Java Developers (includes Incubating components)
Version: 2021-12 (4.22.0)
Windows 10
The structure of my project is as follows: there is a shared folder and there are several maven projects (microservices) in it. I deleted one of the project from workspace.
Now I want to add it back (File->Open Project...),
but I get an error in response:
Select at least one folder to import as project.
As I understand it, the problem is that such a folder is already registered somewhere in the Eclipse settings, because if I change its name, it is added without errors.
Where is this information with the project name stored in Eclipse?
How can I delete it so that I can add a project without changing its name?
I tried to delete all configuration files from the project.
Created a new workspace and switched to it.
Nothing helps
I need to do a work for my university and I choose to do it using the Go language. Yesterday I installed the .msi and setted the variables to:
GOPATH = C:\Users\Gustavo\goprojects (this is the folder that I want to place all my Go projects)
GOROOT = C:\Go\
PATH = C:\Users\Gustavo\goprojects\bin
After this, I installed the GoClipse plugin on my Eclipse and created a new project into the goprojects folder. Then, I created another folder in the src folder, and a .go file into this folder.
Now is my problem. When I started to write some code, everytime that I try to auto complete my code, Eclipse shows me an error and I was searching on google and found that I need to install one project from GitHub called gocode.
So I want to know where do I need to install it and how can I import it to my project.
P.S.: I am using Windows 8.1, I have git installed and the link of gocode project is: https://github.com/nsf/gocode
I solved my problem doing this steps:
Downloaded the gocode to the src folder. (The path: C:\Users\Gustavo\goprojects\src\github.com\nsf\gocode)
In the Eclipse, do this: Window -> Preferences.
Open Go option in the left menu then click Tools.
In the gocode path I set C:\Users\Gustavo\goprojects\bin\gocode.exe
And thats it! It works now.
As previous Eclipse user switched to IntelliJ I would like to be able to access folder external to my project from inside the IDE, while developing.
In Eclipse I was using the feature Creating linked resources.
I wonder if there is any feature in IntelliJ that helps me to access external files and folder in a similar way (for instance, if I want to edit the configuration of my application server which is located outside my project).
Yes you can do it by adding an new content root in your module.
You do that from
Project Structure (alt+ctrl+shift+s) - Modules - "My-Module" - + Add Content root
Now you have the contents of the added folder available in your project.
I was searching for a way to get the asset folder link working in IntelliJ as it was working in Eclipse and I found following link in the wikis of libgdx itself.
Linking the asset directories
It describes basically three approaches:
Just copy the asset folder into the desktop folder. (BAD)
Use the asset folder in the android project as working directory for the desktop project through 'Run-Configurations'. (GOOD)
Create a symbolic-link (GOOD)
I tested the 2nd option and it's working fine for me.
I am new to Eclipse and was wondering what is the dropins folder? Where exactly is it(I am on Windows 8)?
Basically i wanted to use this dark UI theme Roger Dudler made (https://github.com/eclipse-color-theme/eclipse-ui-themes) for Eclipse Juno. If you see near the bottom of this link, he says to place the zip folder into the "dropins folder". I have no idea :(
Thanks
dropins directory in eclipse (Path is Eclipse_home/dropins, which is at same level as plugins folder is present in eclipse) is a default watched directory.
Instead of installing plugins you simply put them under this folder (in your case com.github.eclipsecolortheme.themes_1.0.0.201207121019.jar) and restart the eclipse they will be picked up automatically on next start.
Please note that the dropins folder is not supported or encouraged in JBoss Developer Studio.
Plugin providers should really create an update site (or update site zip) containing their plugin bundles, and then users can simply do Help > Install new ... to install correctly using the fully supported p2/Install Manager method of installation.
Note too that Tycho now supports creation of update sites from nothing more than a pom.xml and category.xml file, and you don't need to create features anymore toadd your to the category.xml.
So there's really no reason to provide a plugin w/o wrapping it with the correct p2 metadata.
The dropins folder is if not exists it must be created. The location is the same as the executable of the IDE.
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.