FirebasePerformance SDK external library issue in proguard

问题

I have implementedFirebasePerformance SDK to measure app performance. It is working fine in debug mode without proguard but giving issue of an external library used in my application when trying to generate a signed build using proguard.

Getting following issue:

java.io.IOException: Can't read [F:\MyApp\app\build\intermediates\transforms\FirebasePerformancePlugin\debug\folders\1\2\7776c3fca671135b87737cd2d8b26538-sessionkeygenerator(;;;;;;**.class)] (F:\MyApp\app\build\intermediates\transforms\FirebasePerformancePlugin\debug\folders\1\2\7776c3fca671135b87737cd2d8b26538-sessionkeygenerator\META-INF\maven\com.sdl.skey\sessionkeygenerator.jar (Access is denied))

Here sessionkeygenerator.jar is an external library I am using to encrypt my data in XML format.

来源：https://stackoverflow.com/questions/49398991/firebaseperformance-sdk-external-library-issue-in-proguard