I had this problem for a while and was able to solve it myself.
If in opening your project in Android Studio and something similar to this error message pops up:
I would like to suggest restart Android studio File > invalidate caches and restart... > invalidate caches and restart option before deleting workspace.xml
if restarting android studio fail to solve your problem, kindly run check disk from disk properties because I notice that this error is raise due to file indexing / file system error or sometime permission denied by OS.
Just Delete idea folder ..
Thank you.