The Android project can run normally and the packaging fails

1 Gradle version problem: Gradle is a build tool for packaging Android applications. If your Gradle version is too low or too high, the packaging may fail. It is recommended to use the latest version of Gradle and specify the Gradle version used in the project.

2 Dependent library version conflict: There may be a conflict in the version of the dependent library used in the project, resulting in packaging failure. You can fix this by checking the versions of dependent libraries in your project and updating them to the latest versions or resolving version conflicts. Code errors: There are code errors in the project, which may cause packaging failure. It is recommended to use the compiler in Android studio to check the code and fix errors.

3 Signing certificate problem: When packaging and publishing the application, it needs to use the signing certificate to sign the application. If the signing certificate is incorrect or expired, the packaging may fail. Please make sure the signing certificate is correct and not expired.

4 Resource file naming problem: There is a resource file naming problem in the project, which may cause packaging failure. Please check whether the naming of resource files in the project conforms to the Android naming convention.

Other issues: There are other issues that may cause packaging failures, such as project configuration errors, device compatibility issues, etc. It is recommended to check the build output log in Android studio to determine the specific reason for the packaging failure and fix it.