You guys don't have to remove libraries at all.
Yes, the problem is caused by the libraries.
BUT!!!
What if you need the libraries to build? It doesn't make sense.
I had a same problem, and finally got the solution.
Add exceptions in the "proguard-project.txt" file having proguard config.
like this
-dontwarn android.support.**
That's it.
1) check what you have libraries on the project.
check package name! not file name!
see the list below "Android Dependencies".
when you click "*.jar",
you can see the package names in the jar file.
Assuming that
you have "aaa.jar".
the jar have "org.jdesktop.application", "org.jdesktop.swingworker"
(Project) > Android Dependencies > aaa.jar > org.jdesktop.application
> org.jdesktop.swingworker
2) just add like below
-dontwarn org.jdesktop.**
into the (Project) > proguard-project.txt file.