title: Eclipse Error: Cannot determine URI for /project-path/
body: <p>I'm running Eclipse Luna on Ubuntu 12.0.4 in VirtualBox with a Windows 8 host and every once in a while, I will boot up Ubuntu and open up Eclipse to find this:</p>
  
  <p><img src="https://i.stack.imgur.com/VnHPq.png" alt="Screen shot of my Eclipse"></p>
  
  <p>My projects should be listed in the package explorer but it's all empty and whenever I try to import the project again, it says no projects are found.</p>
  
  <p>At this point, I usually go to my workspace folder and delete the .lock file and rebuild the workspace but is there an alternative to this? This error happens every ~5 times I reopen Eclipse and it has become very annoying. Any help will be appreciated!</p>
  
  <p>EDIT: Okay I just tried deleting the .lock file in the .metadata folder in my workspace and I'm still getting the same error. Any suggestions?</p>
  
  <p>EDIT 2: While closing my currently open tabs, I got this error. The projects that were open were Maven projects if that makes a difference.</p>
  
  <p><img src="https://i.stack.imgur.com/Eon1J.png" alt="New Error"></p>