Library not generated correct

[cubatertech]

Hi.
I generated .aar library according to your steps that you provided at front page. But when paste this .aar file in Bar code scanner plugin code then received Null Pointer exception when building android app in ionic project.
I received following exception every time:
Execution failed for task ':mergeDebugAssets'. > java.lang.NullPointerException (no error message)

[Raydow]

I had the same problem. For me it solved: cordova clean