title: IntelliJ IDEA code analysis tool not working
body: <p>I'm a relatively new user of the IntelliJ IDEA, moved to it from Eclipse.
  It has been working fine for several months, but now the code analysis plugin that performs analysis and precompiles the code on the fly, fails to work. It shows errors where they've been already fixed, not importing classes correctly. Restarting IDEA, updating to latest version and so on doesn't help. Did anybody face such problems and how did you resolve them?</p>