After following all the prerequisite solutions, move to the troubleshooting guide and resolve your issue. The solutions are in a particular order, so make sure to follow them. Fix ADB is not ...

However, some might prefer to use the ADB interface through a computer. The setup process involves more than the on-device wireless debugging feature introduced with Android 11.

When using adb install, use your local file directory where you stored your .apk (without the brackets). When using adb uninstall, use the name of your .apk app file.