Android Studio: Gradle: error: cannot find symbol variable
android, android-gradle-plugin, gradle
Solution
You shouldn't be importing `android.R`. That should be automatically generated and recognized. This question contains a lot of helpful tips if you get some error referring to `R` after removing the import.
Some basic steps after removing the import, if those errors appear:
- Clean your build, then rebuild
- Make sure there are no errors or typos in your XML files
- Make sure your resource names consist of `[a-z0-9.]`. Capitals or symbols are not allowed for some reason.
- Perform a Gradle sync (via Tools > Android > Sync Project with Gradle Files)
Problem
I was working on my app and everything was normal until I tried to display image in java. I ran the app once and it ran normally, the picture was displayed. After that it asked me to import some libraries and I imported them. After that I got errors for my activities. Errors like: ``` Gradle: error: cannot find symbol variable activity_main Gradle: error: cannot find symbol variable button1 Gradle: error: cannot find symbol variable button2 Gradle: error: cannot find symbol variable textView Gradle: error: cannot find symbol variable secondActivity ``` In MainActivity I have imported these libraries: ``` import android.R; import android.content.Intent; import android.os.Bundle; import android.app.Activity; import android.view.Menu; import android.widget.Button; ``` and in secondActivity these: ``` import android.R; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.widget.Button; ``` Does anyone know how to fix this? EDIT: I deleted `import android.R;` and now it works normally.