For others you have the same problem. I solved this issue by completely replaced all android files of the project.
Delete your Build Delete the Android folder of your project Projects/Build Android APK/Create Templates-
Solved Qt versus Android Java
• mrdebug -
Unsolved Qt5.11: reconfigure framebuffer
• debian -
Unsolved QThread on vxWorks
• Narasimman -
Unsolved Qt on Grayhill 3D70 (Linux)
• devDawg -
Unsolved Android APK build error
• gabor53