I hope this was asked before and there is an easy solution.
Since the start of the plugin development, I got one (fortunately minor) issue very often: When I release a new version of my plugin and I have worked on the parser or the variable resolving, IDEA shows (wrong) parser errors over all opened files. Invalidating the caches (File->Invalidate Caches) and a restart fixes the problem.
Is this a known issue? Can I force IDEA to automatically re-index everything on a plugin-update?