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How to Fix “Error 500: Java.Lang.NullPointerException”

The error 500: Java.lang.nullpointerexception is an error that is faced by some developers when executing their code. Moreover, end-users also encounter the error 500 ...
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Exception java.lang.NullPointerException: Attempt to read from field 'java.lang.String io.flutter.view.FlutterCallbackInformation.callbackLibraryPath' on a null object reference

at io.flutter.plugins.firebase.messaging.FlutterFirebaseMessagingBackgroundExecutor.lambda$startBackgroundIsolate$0 (FlutterFirebaseMessagingBackgroundExecutor.java ...
GitHub4y

Android crash: Unable to start activity ComponentInfo{.......MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'boolean io.flutter.embedding ...

We have seen this crash in the wild happening to a number of users. I am unsure how to reproduce it but it has been showing up in crashlytics frequently. Fatal Exception: java.lang.RuntimeException: ...