I have a plugin which was developped mainly under IJ12 but also under IJ13 with a minor update. The code has not changed for a long time.
Today I ran in something new with IJ13.1.1 (13.1 had the problem too) when invoking "Prepare... from Deployment". Call my plugin "abc" for example. A message pops up reporting "Duplicate entry in abc-jps-plugin/lib/abc-jps-plugin.jar"
The abc-jps-plugin.zip file gets created but does only contain a lib dir and none of the plugins' class files. And the single jar in the lib dir also seems too small to me.
Anyway ran into something similar already? Do these symptoms ring a bell to someone. Many thanks in advance.