private void EnsureSelfPackageInstalled(NuGetInstallService installService) { if (Args.SelfPackageId != null) { SelfPackage package = new SelfPackage(Args.SelfPackageId); if (!installService.IsInstalled(package)) { if (installService.IsInstalled(package.Id)) { installService.Uninstall(package.Id); } installService.Install(package); } } }