output.log(this.location?localize('installingExtensionsOnLocation',"Installing extensions on {0}...",this.location):localize('installingExtensions',"Installing extensions..."));
returnthis.location?localize('notInstalleddOnLocation',"Extension '{0}' is not installed on {1}.",id,this.location):localize('notInstalled',"Extension '{0}' is not installed.",id);