Cannot resolve symbol MyApplication

The error "Cannot resolve symbol MyApplication" typically occurs when the compiler cannot find the reference to the MyApplication class in your codebase. This class is usually automatically generated when you create a new Android application project.

To resolve this issue, you can try the following steps:

1. Make sure that you have defined the MyApplication class correctly in your code. It should extend the Application class and be declared in the AndroidManifest.xml file using the `android:name` attribute.

2. Clean and rebuild your project. In Android Studio, you can go to "Build" > "Clean Project" and then "Build" > "Rebuild Project" to regenerate any missing files or references.

3. Check if you have any import statements missing for the MyApplication class. Make sure that you have imported the correct package where the MyApplication class is located.

4. If you have recently made any changes to your project's structure or dependencies, double-check if there are any conflicts or errors in your build.gradle files.

5. If the issue persists, try restarting Android Studio or re-importing the project.

If none of these steps resolve the issue, please provide more context or the relevant code snippets so that I can assist you further.