public NuGetDownloader(string nugetName, IEnumerable <string> repositories) { package = nugetName; var nugetCacheDirectory = Path.Combine(AzureEnvironment.GetTempPath(), "packages"); var reposToUse = new List <IPackageRepository> { PackageRepositoryFactory.Default.CreateRepository(nugetCacheDirectory) }; if (!AzureEnvironment.IsRunningInCloud()) { reposToUse.Add(MachineCache.Default); } reposToUse.AddRange(repositories.ToList().Select(r => PackageRepositoryFactory.Default.CreateRepository(r))); var repo = new AggregateRepository(reposToUse); packageManager = new PackageManager(repo, /*"packages"*/ nugetCacheDirectory); }