이것은 오류입니다.gradle 빌드 오류가 발생했습니다.
오류 : ''app ''프로젝트를 구성하는 중에 문제가 발생했습니다.
Could not resolve all dependencies for configuration ':app:_debugCompile'. Could not resolve com.android.support:appcompat-v7:25.+. Required by: MyApplication2:app:unspecified Could not resolve com.android.support:appcompat-v7:25.+. Failed to list versions for com.android.support:appcompat-v7. Unable to load Maven meta-data from https://jcenter.bintray.com/com/android/support/appcompat-v7/maven-metadata.xml . Could not GET ' https://jcenter.bintray.com/com/android/support/appcompat-v7/maven-metadata.xml '. jcenter.bintray.com
도와주세요 ...
SDK 관리자를 업데이트 했습니까? –