Flash back in android

[rareli]

Device: Mobile Phone
Android Version: 23(6.x)
Bug: Exit app as soon as possible when starting.

Debug Information:

$ adb push /Users/rareli/Documents/WORKSPACE/SLib/examples/UI/CameraView/Android/app/build/outputs/apk/debug/app-debug.apk /data/local/tmp/io.slib.examplecameraview
$ adb shell pm install -t -r "/data/local/tmp/io.slib.examplecameraview"
pkg: /data/local/tmp/io.slib.examplecameraview
Success

$ adb shell am start -n "io.slib.examplecameraview/io.slib.examplecameraview.MainActivity" -a android.intent.action.MAIN -c android.intent.category.LAUNCHER
Error while executing: am start -n "io.slib.examplecameraview/io.slib.examplecameraview.MainActivity" -a android.intent.action.MAIN -c android.intent.category.LAUNCHER
Starting: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] cmp=io.slib.examplecameraview/.MainActivity }
Error type 3

Error: Activity class {io.slib.examplecameraview/io.slib.examplecameraview.MainActivity} does not exist.

Error while Launching activity