java.lang.IllegalArgumentException: The main resource set specified […] is not valid

Question

I\'m having trouble starting my Tomcat server, it used to work, but I did something wrong and now it throws me this exception:

Caused by: java.lang.IllegalAr         


        

Answer 1

I had a similar issue. Just if someone else runs into this problem:

For me it was caused because I had an old project deployed, then closed that project. For several weeks, everything was fine, until I used the "Clean..." command of eclipse on that tomcat server. From that point on the famous The main resource set specified [...path to deployment location of this project...] is not valid was raised every time I tried to start Tomcat. What solved this problem for me was just removing that old project from tomcat (Right click on that entry under Tomcat Server and choose "Remove").