title: Eclipse: Some or all projects can not be imported because they already exist in the workspace
body: <p>I'm sorry, I know that question is asked quite often. But non of the scenarios suits my problem.</p>
  
  <p>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:</p>
  
  <blockquote>
    <p>Some or all projects can not be imported because they already exist in
    the workspace</p>
  </blockquote>
  
  <p>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:</p>
  
  <blockquote>
    <p>C:\Development\workspace.metadata.plugins\org.eclipse.core.resources.projects</p>
  </blockquote>
  
  <p>But still I can't re-add it to the Eclipse workspace. Any idea?</p>