android studio 重装系统后在运行项目报错
Caused by: org.gradle.api.internal.artifacts.ivyservice.DefaultLenientConfiguration$ArtifactResolveException: Could not resolve all artifacts for configuration ':classpath'.
Caused by: org.gradle.internal.resolve.ArtifactResolveException: Could not download protobuf-java.jar (com.google.protobuf:protobuf-java:3.4.0): No cached version available for offline mode
> Could not resolve all artifacts for configuration ':classpath'.
> Could not download protobuf-java.jar (com.google.protobuf:protobuf-java:3.4.0): No cached version available for offline mode
> Could not download bcpkix-jdk15on.jar (org.bouncycastle:bcpkix-jdk15on:1.56): No cached version available for offline mode
> Could not download bcprov-jdk15on.jar (org.bouncycastle:bcprov-jdk15on:1.56): No cached version available for offline mode