Cannot build debug Android



Hi I am trying to build a debug app on Android, so I can use it with Firebase test labs. However, I cannot seem to be able to build the debug app as it cannot find the debug signing key:

Here is the command:

- ./gradlew assemble[VARIANT_NAME]Debug

Here is the error:

Execution failed for task [TASK_NAME].
> Keystore file /home/.android/debug.keystore not found for signing config 'debug'.

Does anyone know why I am seeing this?