Flutter Classnotfoundexception (java.lang.runtimeexception) Crash Error

Recently, I uploaded my Flutter app to Play Store. My app crashed after installing and opening the app. I've got several Crash Reports. I did researched everywhere about this error

Solution 1:

ndk {
    abiFilters 'x86', 'x86_64', 'armeabi', 'armeabi-v7a', 'mips', 'mips64', 'arm64-v8a'
}

fixed it. Add the line to app/build.gradle