$ gcloud components install gae-go # だめだった You have specified individual components to update. If you are trying to install new components, use: $ gcloud components install gae-go Do you want to run install instead (y/N)? y WARNING: Component [gae-go] no longer exists. WARNING: The standalone App Engine SDKs are no longer distributed through the Cloud SDK (however, the appcfg and dev_appserver com