17:18	Gradle build finished in 2 s 904 ms

17:18	Failed to commit install session 1905086282 with command cmd package install-commit 1905086282. Error: INSTALL_FAILED_TEST_ONLY

17:18	Error
		Installation did not succeed.
		The application could not be installed: INSTALL_FAILED_TEST_ONLY
		Retry

17:18	Session 'app': Installation did not succeed.
		The application could not be installed: INSTALL_FAILED_TEST_ONLY
		Retry

2. Solution

1. Problem analysis

When you click to run the debugging program, it will be automatically generated in the application tab of the manifest file

android:testOnly="true"

Some mobile phones do not support the installation of such applications;

2. Solution 1

Under menu bar/build:

• Debug apps compiled with Build APK(s) can run;
• The debug version of the application compiled with Make Project can be run;
• Released apps packaged with Generate Signed APK signatures will also work;

3. Solution 2

Configure in gradle.properties

android.injected.testOnly=false