Unit test configuration broke in Android Studio 3.1

Question

I updated to Android Studio 3.1 and as suggested by Android Studio also:

• Updated the Android gradle plugin to 3.1.0 from 2.3.0 (also tried the new 3.1.1, the probl

Answer 1

in your gradle-wrapper.properties, try using:

distributionUrl=https://services.gradle.org/distributions/gradle-4.3-rc-2-all.zip

Answer 2

As this bug commenter pointed out: https://issuetracker.google.com/issues/77605097#comment7

disabling the "configure on demand" feature of Gradle (in Settings: Build, Execution, and Deployment: Compiler) is a viable workaround.

Since I did this my Unit tests are all working again.

Answer 3

Solution from kekkou of the libgdx forums: http://www.badlogicgames.com/forum/viewtopic.php?f=11&t=27639&p=109249#p109249

His solution is: Move the project(':android') {} block in root build.gradle into android\build.gradle.

This makes all commands work again. I did not find any downsides.

The commit for this fix on my project: https://github.com/Leejjon/BluffPoker/commit/d10deb090c2d80e641d733efdaa85f99c0a9fe2f