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androidandroid-studioandroid-studio-3.0appcompatactivityandroid-appcompat

Error : Ambiguous method call. Both findViewById (int) in AppCompactActivity and Activity


I am getting the error: "Ambiguous method call" on initializing Toolbar using Android Studio 3.0 RC1. I have extended my Activity with AppCompatActivity and compiling my application using 'compileSdkVersion 26'. Attaching a screenshot of the error.enter image description here


Solution

  • If you recently updated your project to API, Try doing

    File -> Invalidate Caches / Restart

    then

    File -> Sync Project with Gradle Files

    this resolve for me.