[Flutter] FAILURE: Build failed with an exception. A problem occurred evaluating project ':app'. > path may not be null or empty string. path='null' 오류

Environments

• M1 Mac pro 14
• VSCode
• Flutter 3.3.8
• Galaxy A52 (SM A525F)

 

Error Message

FAILURE: Build failed with an exception.

* Where:
Build file '/Users/jaewonlee/Desktop/milkflutter/android/app/build.gradle' line: 69

* What went wrong:
A problem occurred evaluating project ':app'.
> path may not be null or empty string. path='null'

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 570ms
Running Gradle task 'assembleDebug'...                           1,213ms
Exception: Gradle task assembleDebug failed with exit code 1

 

문제 상황

안드로이드 실 기기를 연결하여 flutter run 으로 앱 디버깅을 하려고 했을 때, 빌드가 되지 않는 현상

 

해결

* Where:
Build file '/Users/jaewonlee/Desktop/milkflutter/android/app/build.gradle' line: 69

에서 쓰여 있듯, android > app > build.gradle 파일에서

 

signingConfigs {
  release {
    keyAlias keystoreProperties['keyAlias']
      keyPassword keystoreProperties['keyPassword']
      storeFile file(keystoreProperties['storeFile'])
      storePassword keystoreProperties['storePassword']
  }
}

buildTypes {
  release {
    // TODO: Add your own signing config for the release build.
    // Signing with the debug keys for now, so `flutter run --release` works.
    signingConfig signingConfigs.release
  }
}

이 부분을 comment out (주석처리 or 삭제) 해주면 해결된다.

 

Reference

https://stackoverflow.com/questions/54457245/a-problem-occurred-evaluating-project-app-path-may-not-be-null-or-empty-st