Gradle failed to build when proguard is activated

Question

I am trying to release my Android application with Gradle.

Everything works, including the ./gradlew clean build assembleRelease command.

Howeve

Answer 1

Hmmm, I don't understand why but it seems if I start two times the same task with the same parameters (proguard...) the second one is the good one.

But if the second one the parameters change, the task fail.

Hope it will help someone.

Regards