I have this problem using mercurial from idea 12.1. I am not a mercurial user, I just happened to check out the source code from a mercurial repo. and now every now and then idea complains that :
Error executing "/usr/bin/hg". Make sure you have setup the right executable in Mercurial configuration
Address already in use
The hg address is correct and I have no idea what is the address intellij is talking about. I am runnint community edition 12.1 on linux ubuntu .