public static void Run(InstallOptions opts) { if (opts.Version == null) { opts.Version = Utils.getLocalNPMRCVersion().Version; } if (opts.Version == null) { Console.Error.WriteLine("Please specifiy a version to install"); return; } NodeVersion toInstall = VersionResolver.Resolve(opts.Version); if (toInstall == null) { Console.Error.WriteLine("Invalid version provided, couldn't resolve version \"" + opts.Version + "\""); } else { Download(toInstall); } }