flutterkotlinflutter-dependencieskotlin-gradle-plugin

Cannot access 'android.arch.lifecycle.LifecycleOwner' which is a supertype of 'com.ex.app.MainActivity'

I create a new flutter project in android studio then "open project" the android part of it, I met an error in MainActivity.kt however it builds successfully.

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My class pathes are:

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and finally my dependencies are:

implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.3.70"
testImplementation 'junit:junit:4.12'
androidTestImplementation 'androidx.test:runner:1.2.0'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'

I would be grateful if someone could help me.

Solution

  • I face same Problem, now it solved in my case

    Step 1 : open your project in AndroidStudio
    Step 2 : open Terminal and goto your project path in terminal
    Step 3 : Hit this command 'git clean -xfd'
    Step 3 : Goto : File -> Invalidate caches/restart