title: IntelliJ idea stucked on "loading project" screen
body: <p>This is a Monday morning nightmare on top of existing bugs I have!!</p>
  
  <p>I have couple of projects which i open simultaneously using intellj. One of the project was not showing all directory structures inside it so i <a href="https://stackoverflow.com/a/31227017/3154233">took some advice</a> and deleted the <code>.idea</code> folder. Now all hell broke loose on me.</p>
  
  <p>I am stucked here from the dawn of mankind now</p>
  
  <p><img src="https://i.stack.imgur.com/GAKDs.png" alt=""></p>
  
  <p>Intellij logs</p>
  
  <pre><code>2017-12-04 09:46:59,444 [   9036]   INFO -                git4idea.GitVcs - Git version: 2.14.3.0 
  2017-12-04 09:46:59,533 [   9125]   INFO - pl.projectlevelman.NewMappings - VCS Root: [Git] - [/codebase/plutus] 
  2017-12-04 09:47:01,309 [  10901]   INFO - tor.impl.FileEditorManagerImpl - Project opening took 6353 ms 
  2017-12-04 09:47:02,913 [  12505]   INFO - .diagnostic.PerformanceWatcher - Indexable file iteration took 4772ms; general responsiveness: ok; EDT responsiveness: 2/5 sluggish, 1/5 very slow 
  2017-12-04 09:47:05,252 [  14844]   INFO - ellij.project.impl.ProjectImpl - 18 project components initialized in 52 ms 
  
  # ----- ^^ all good till here, below is when i start open new project
  
  
  2017-12-04 09:47:26,455 [  36047]   INFO - og4jmonitor.Log4JWindowManager - creating new LoggingReceiver on port:=4454 
  2017-12-04 09:47:26,496 [  36088]   INFO - ellij.project.impl.ProjectImpl - 153 project components initialized in 165 ms 
  2017-12-04 09:47:26,497 [  36089]   INFO - le.impl.ModuleManagerComponent - 0 module(s) loaded in 0 ms 
  2017-12-04 09:47:26,645 [  36237]   INFO - CompilerBackwardReferenceIndex - backward reference index version differ due to: class java.io.FileNotFoundException 
  </code></pre>
  
  <p>Two errors i see on my screen are :</p>
  
  <p><a href="https://i.stack.imgur.com/ZnkhX.png" rel="noreferrer"><img src="https://i.stack.imgur.com/ZnkhX.png" alt="enter image description here"></a></p>
  
  <p>Intellij version </p>
  
  <p><a href="https://i.stack.imgur.com/EbCds.jpg" rel="noreferrer"><img src="https://i.stack.imgur.com/EbCds.jpg" alt="enter image description here"></a></p>
  
  <p>Any help would draw your chances of not having monday morning blues and nightmare like me! :) <br />
  Thank you!</p>