Why my apk file is trying to make apk on wrong directory

i typed ionic cordova run androd --device

then cause error like below.
My ionic project is on Documents folder on my mac. but don’t know why /Users/username???

BUILD SUCCESSFUL in 3s
42 actionable tasks: 42 executed
Built the following apk(s): 
        /Users/username/platforms/android/app/build/outputs/apk/debug/app-debug.apk
> native-run android --app platforms/android/app/build/outputs/apk/debug/app-debug.apk --device
[native-run] Selected hardware device LGMG600K7a706c5a
[native-run] Error: ENOENT: no such file or directory, open 'platforms/android/app/build/outputs/apk/debug/app-debug.apk'
[ERROR] An error occurred while running subprocess native-run.
        
        native-run android --app platforms/android/app/build/outputs/apk/debug/app-debug... exited with exit code 1.
        
        Re-running this command with the --verbose flag may provide more information.
  1. more funny thing is that after above error, I typed again

then cause more weird error

Using cordova-fetch for cordova-android@8.1.0
Platform android already added.
[ERROR] An error occurred while running subprocess cordova.
        
        cordova platform add android --save exited with exit code 1.
        
        Re-running this command with the --verbose flag may provide more information.

???Platform android already added.???
I tried to run android on my device but they said platform android is already added…

how can I run my app on android real device…

Go to cd platforms/android and try this command ‘./gradlew clean’.