개발자들 능력자들

위와같이 Call requires API level 16 (currentmin is 14): android.view.View#setBackground more

어쩌구 농락을 한다.

이럴땐 gradle 을 손보자.

들어가서

defaultConfig {
    applicationId "com.fractalwrench.androidbootstrap.sample"

    minSdkVersion Integer.parseInt(MIN_SDK_INT)
    targetSdkVersion Integer.parseInt(TARGET_SDK_INT)
    versionCode = Integer.parseInt(VERSION_CODE)
    versionName = VERSION_NAME
}

변경해주자

defaultConfig {
    applicationId "com.fractalwrench.androidbootstrap.sample"

    minSdkVersion 16
    targetSdkVersion Integer.parseInt(TARGET_SDK_INT)
    versionCode = Integer.parseInt(VERSION_CODE)
    versionName = VERSION_NAME
}

SDK 버전쪽을 변경해주면 끝