Using Intellij12:
In my Tomcat configuration I've added an external war, and an artifact from my current project. Tomcat manages to deploy the project artifact fine, but when it gets to the external war intellij pops up a dialog saying 'Cannot load /home/xxx/.IntellijIdea12/.../conf/Catalina/localhost/manager.xml'. It appears it's something to do with the artifact deploy deleting and recreating the conf directory. I managed to work around this by moving the external war above the project artifact in the deploy order. Is this a known bug?