Eclipse: Some or all projects can not be imported because they already exist in the workspace

Question

I'm sorry, I know that question is asked quite often. But non of the scenarios suits my problem.

I'm using Eclipse (in Win7) with Git. Within a Git-branch I created a new project. Then I switched back on the master-branch. There the project is not in the workspace. But when I want to add it, I get the following error:

Some or all projects can not be imported because they already exist in the workspace

My problem is, that the project is NOT in the workspace - as seen in Eclipse. But sure, it's on the hard disk, because it's part of my Git repository. So I can't delete it there. According to other posts, I removed it from this folder:

C:\Development\workspace.metadata.plugins\org.eclipse.core.resources.projects

But still I can't re-add it to the Eclipse workspace. Any idea?

Solution 1

Use "file" --> "import" -->"Existing Projects into Workspace" to import the Project that exists on your HDD

Solution 2

This usually happens when you change the project directory physically without first delete in Eclipse. You can view and delete these hidden projects in the following view:

Window -> Show View -> Other -> Navigator

Then simply just continue with the process of import existing project.

Solution 3

1. Go to Window-> Perspective -> Open Perspective -> Java EE

2. Right click on the desired project and remove it

3. Go to File -> Import -> Existing Projects into Workspace