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The import statement turns gray and says there’s no package for support.v7.app.

When you rename the application package name this error pops up. Why There is a Need To Solve “Cannot resolve symbol ‘AppCompatActivity'”? External Storage in Android with Example.Firebase Authentication with Phone Number OTP in Android.How to Retrieve Data from the Firebase Realtime Database in Android?.How to Post Data to API using Retrofit in Android?.Implicit and Explicit Intents in Android with Examples.How to View and Locate SQLite Database in Android Studio?.Fix "Unable to locate adb within SDK" in Android Studio.How to change the color of Action Bar in an Android App?.How to Install and Set up Android Studio on Windows?.How to Push Notification in Android using Firebase Cloud Messaging?.How to Change the Color of Status Bar in an Android App?.How to Add and Customize Back Button of Action Bar in Android?.Content Providers in Android with Example.

How to Update Gradle in Android Studio?.How to Create and Add Data to SQLite Database in Android?.Broadcast Receiver in Android With Example.Android Projects - From Basic to Advanced Level.How to Send Data From One Activity to Second Activity in Android?.How to Change the Background Color of Button in Android using ColorStateList?.MVVM (Model View ViewModel) Architecture Pattern in Android.ISRO CS Syllabus for Scientist/Engineer Exam.ISRO CS Original Papers and Official Keys.GATE CS Original Papers and Official Keys.