Did you start out with a BasicGame project? A normal java project won’t manage the assets folder by default. Also make sure that in your project properties under “Build->Assets” the correct path and asset jar name are set.
I got the problem @normen
The problem lies in uncoupling of build xmls. This means that project structure changes but build xmls stop to refresh! I got this problem when I exported my project to intellij idea. I got the same problem but I don’t know there is any way to relink build xmls! My build xml works for desktop config but not working for android just inverse of @BigBob problem. But he could force build xml to rebuild but in my problem build xlm only compiles desktop files even when I check develop for android and in last steps of compile gives that error.
also in post:
somebody could rebuild xmls by renaming assets folder but it doesn’t work for me! And IDE only runs desktop even when I check Develop for android and select Android device config!
Is there any way to regain build xml autogeneration back?