Why Am I Getting a `java.lang.ClassNotFoundException: Didn't find class 'android.app.POMActivity'`?

java.lang.ClassNotFoundException: Didn't Find Class

Problem:

When attempting to launch an application, you encounter the following error:

java.lang.ClassNotFoundException: Didn't find class "android.app.POMActivity" on path: DexPathList[[zip file "/data/app/com.irrlicht.example1-2.apk"],nativeLibraryDirectories=[/data/app-lib/com.irrlicht.example1-2, /system/lib]]

Possible Cause:

This error can occur when Android cannot locate the specified activity class, "android.app.POMActivity," within the DexPathList. This suggests a discrepancy between the class declared in the AndroidManifest.xml file and the actual class present in the code.

Solution:

1. Ensure Activity Name Matches: Verify that the Activity name declared in the AndroidManifest.xml file ("android.app.POMActivity") matches the class name defined in the main.cpp file.
2. Disable Instant Run: If you are using Instant Run, disable it by navigating to File -> Settings -> Build, Execution, Deployment -> Instant Run and unchecking "Enable Instant Run."
3. Rebuild and Run: After making any changes, rebuild and rerun the application.

Additional Information:

• Double-check the spelling of the activity class name in both the AndroidManifest.xml and main.cpp files.
• Review the project structure and ensure that the main.cpp file is included in the project's source files list.
• If the problem persists, try cleaning the project and rebuilding it from scratch.

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