How can I fix this error

[Mukhtiar456]

Hey friends how can I fix this error

[EduApps]

Error "aapt exited with code139" and "unknown entity R"

Try:

Delete bin and gen folder;
Refresh Build;
Restart AIDE (optional);
Build & Run;

In some cases it’s just a simple error that can be solved by just Build and Run (ignorate the error).

If it fails:

Error "aapt exited with code139" and "unknown entity R"

It looks like you have changed the package of your app

If you are using gradle remember to change the package of build.gradle and AndroidManifest.xml !
If the R.java is not generated probably its build.gradle

And remember to impor the R.java

[Abdulmana]

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