I upgraded to Android Gradle plugin 4.0.0 which required me to upgrade the Gradle wrapper as well. I upgraded the Gradle wrapper to 6.4.1 from 5.6.4. After the upgrade, I got following exception when trying to run instrumented tests with testCoverageReport enabled.

java.io.IOException: No coverage data to process in directories [/Users/runner/runners/2.263.0/work/noice/noice/app/build/outputs/code_coverage/debugAndroidTest/connected]

Build logs with Gradle 6.4.1 - https://github.com/ashutoshgngwr/noice/runs/722643012#step:4:2 Build logs with Gradle 6.1.1 - https://github.com/ashutoshgngwr/noice/runs/722702335#step:4:2 build.gradle - https://github.com/ashutoshgngwr/noice/blob/master/build.gradle app/build.gradle - https://github.com/ashutoshgngwr/noice/blob/master/app/build.gradle

Studio Build: N/A Version of Gradle Plugin: 4.0.0 Version of Gradle: 6.4.1 Version of Java: openjdk version "1.8.0_252" and openjdk version "10.0.2" 2018-07-17 OS: Linux

Steps to Reproduce:

Run ./gradlew wrapper --gradle-version 6.4.1
Run ./gradlew clean connectedCheck
Get the aforementioned exception
Run ./gradlew wrapper --gradle-version 6.1.1 (downgrade)
Run ./gradlew clean connectedCheck
Everything works as expected

Please do let me know if I can provide any further information.