Why am I getting the toast message 'Developer warning for package ... Failed to post notification on channel...' ?

You are using the old pushlink version with Android 8 that requires >= 5.5.3.

Why am I getting 'There was a problem parsing the package' after initiating the installation process?

List of possibilities:

• You are using the old pushlink version with Android 7 that requires >= 5.5.2 + FileProvider . In this case, you are going to see the error 'java.lang.SecurityException: MODE_WORLD_READABLE no longer supported' in logcat.

• You are generating testOnly APK's. Take a look at Android Studio 3.0 and FLAG_TEST_ONLY.

• You forgot to bump the version code.

• You forgot to check the V2 (Full APK Signature) in Android Studio release process wizard.

Why am I getting 'PushLink-PushListener --> javax.net.ssl.SSLHandshakeException: com.android.org.bouncycastle.jce.exception...' in logcat?

Maybe your device clock is too late or ahead.

Why am I getting 'android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an application' in logcat?

Maybe you forgot to call PushLink.setCurrentActivity when using popup strategies.

Why am I getting 'PushLink not initialized! java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()' in logcat?

You are starting PushLink inside your own thread. Start it inside the main UI thread.

What does "Installation" mean?

Installation means a single linux/android process using PushLink. If one device runs two applications using PushLink, there are two installations.

What does "plan overflow" mean?

You have reached your plan limit and Pushlink will register as disabled the new installations from now on. Disabled means that you can see them on administration, but can't send updates or receive exceptions.