Android Build failed with an exception > Building 100%./gradlew connectedAndroidTest returned exit code 1

com.android.builder.testing.api.DeviceException: com.android.ddmlib.InstallException: Unable to upload some APKs
at com.android.builder.testing.ConnectedDevice.installPackages(ConnectedDevice.java:108)
at com.android.builder.internal.testing.SimpleTestCallable.call(SimpleTestCallable.java:125)
at com.android.builder.internal.testing.SimpleTestCallable.call(SimpleTestCallable.java:48)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Caused by: com.android.ddmlib.InstallException: Unable to upload some APKs
at com.android.ddmlib.Device.installPackages(Device.java:913)
at com.android.builder.testing.ConnectedDevice.installPackages(ConnectedDevice.java:105)
… 8 more

Have you tried running the same command in ssh?

ssh ???
i run on device it work fine… but in circle ci not working

You can SSH into the builds using this guide. Can you try to SSH in and run the step manually to see if it works?

i tried still exception, anybody help me… please give any useful to link to write circle.yml script syntax and examples