Can`t include jar file (third-party tapjoy library) into the android project

Hello, please help me with my problem, i put the tapjoylibrary.jar in /android/libs directory(as described in readme file), and i have compile errors on requiring it`s classes is CoronaApplicaion.java .

Any ideas ?

Are you building a plugin before the main project? I found that if you run the build.plugin.sh make file, it clears the /libs directory.

Are you building a plugin before the main project? I found that if you run the build.plugin.sh make file, it clears the /libs directory.