App crashed when upgrade 0.8.0 on android

[answer0732]

Hi,
After upgrading to workmanager 0.8.0, I received many crash reports and feedback from users.
It seems the new version causes runtime issues.

How can I fix this issue? Thank you.

Here is logs:

java.lang.NullPointerException

Exception java.lang.NullPointerException:
  at io.flutter.embedding.engine.dart.DartExecutor$DartCallback.toString (DartExecutor.java:426)
  at java.lang.String.valueOf (String.java:4102)
  at java.lang.StringBuilder.append (StringBuilder.java:179)
  at io.flutter.embedding.engine.dart.DartExecutor.executeDartCallback (DartExecutor.java:181)
  at dev.fluttercommunity.workmanager.BackgroundWorker.startWork$lambda$5 (BackgroundWorker.kt:111)
  at android.os.Handler.handleCallback (Handler.java:959)
  at android.os.Handler.dispatchMessage (Handler.java:100)
  at android.os.Looper.loopOnce (Looper.java:257)
  at android.os.Looper.loop (Looper.java:342)
  at android.app.ActivityThread.main (ActivityThread.java:9638)
  at java.lang.reflect.Method.invoke
  at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:619)
  at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:929)

Exception : java.lang.NullPointerException	Attempt to read from field 'java.lang.String io.flutter.view.FlutterCallbackInformation.callbackLibraryPath' on a null object reference in method 'java.lang.String v8.a$b.toString()'
  at io.flutter.embedding.engine.dart.DartExecutor$DartCallback.toString (DartExecutor.java:426)
  at java.lang.String.valueOf (String.java:4102)
  at java.lang.StringBuilder.append (StringBuilder.java:179)
  at io.flutter.embedding.engine.dart.DartExecutor.executeDartCallback (DartExecutor.java:181)
  at dev.fluttercommunity.workmanager.BackgroundWorker.startWork$lambda$5 (BackgroundWorker.kt:111)
  at android.os.Handler.handleCallback (Handler.java:1014)
  at android.os.Handler.dispatchMessage (Handler.java:102)
  at android.os.Looper.loopOnce (Looper.java:250)
  at android.os.Looper.loop (Looper.java:340)
  at android.app.ActivityThread.main (ActivityThread.java:9860)
  at java.lang.reflect.Method.invoke
  at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:621)
  at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:957)

[Tulleb]

Duplicate of #527