[Android] Could not resolve all files for configuration ':app:debugCompileClasspath'.

Caused by: org.gradle.api.internal.artifacts.ivyservice.DefaultLenientConfiguration$ArtifactResolveException: Could not resolve all files for configuration ':app:debugCompileClasspath'.

 

에러가 발생했는데, build.gradle(Project) 파일에 jcenter() 를 추가하여 해결했다.

repositories {
    google()
    jcenter()
    mavenCentral()
}