Flutter Tip - mergeDexDebug

문제

빌드할 때 나올 수 있는 에러입니다.

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BUILD FAILED in 6s
[!] The shrinker may have failed to optimize the Java bytecode.
    To disable the shrinker, pass the `--no-shrink` flag to this command.
    To learn more, see: https://developer.android.com/studio/build/shrink-code
Gradle task assembleDebug failed with exit code 1
Exited (sigterm)

원인

위의 참고: https://developer.android.com/studio/build/multidex

minSdkVersion 버전이 20 보다 작을 때 생기는 문제랍니다.

해결

multidex 관련 내용 2줄을 추가하면 해결됩니다.

android/app/build.gradle

// ..
    defaultConfig {
        // ..
        multiDexEnabled true
    }
}

dependencies {
    // ..
    implementation 'com.android.support:multidex:1.0.3'
}