1. Modify the name in AndroidManifest.xml

C:\Users\Eddy\StudioProjects\hsk_words\android\app\src\debug\AndroidManifest.xml C:\Users\Eddy\StudioProjects\hsk_words\android\app\src\main\AndroidManifest.xml C:\Users\Eddy\StudioProjects\hsk_words\android\app\src\profile\AndroidManifest.xml

2. Modify the name in directory ( folder name)

You need to use a different package name because “com.wordx.hsk_words” is already used by one of your other applications.

3. Modify the name in build.gradle

C:\Users\Eddy\StudioProjects\hsk_words\android\app\build.gradle applicationId “com.wordx.hsk_vocabulary”

4. Modify the version code

C:\Users\Eddy\StudioProjects\hsk_words\android\app\build.gradle Every time you update your  apk bundle on Google Play, you need to increase the Version Code by 1. Like this way, 1, 2, 3...