App runs well in Chrome but not in Android

[Haider Ali]

I have developed a flutter app that runs well in Chrome (Web-based) but when I try to run on Android phone it gives me the following error:

* What went wrong:

Execution failed for task ':firebase_core:compileDebugJavaWithJavac'.

> java.lang.NullPointerException (no error message)

Will be grateful if someone can send me solution.