问MSB3073:在Visual Studio 2019 Asp.NetCore项目中，命令dotnet bundle clean退出，代码为1

EN

> dotnet bundle clean

NuGet.Packaging.Core.PackagingException: Der Fallbackpaketordner "C:\ProgramData\Xamarin\NuGet" wurde nicht gefunden.
   at NuGet.Packaging.FallbackPackagePathResolver..ctor(String userPackageFolder, IEnumerable`1 fallbackPackageFolders)
   at Microsoft.DotNet.Cli.Utils.LockFileExtensions.GetPackageDirectory(LockFile lockFile, LockFileTargetLibrary library)
   at Microsoft.DotNet.Cli.Utils.PackagedCommandSpecFactory.GetCommandFilePath(LockFile lockFile, LockFileTargetLibrary toolLibrary, LockFileItem runtimeAssembly)
   at Microsoft.DotNet.Cli.Utils.PackagedCommandSpecFactory.CreateCommandSpecFromLibrary(LockFileTargetLibrary toolLibrary, String commandName, IEnumerable`1 commandArguments, IEnumerable`1 allowedExtensions, LockFile lockFile, CommandResolutionStrategy commandResolutionStrategy, String depsFilePath, String runtimeConfigPath)
   at Microsoft.DotNet.Cli.Utils.ProjectToolsCommandResolver.ResolveCommandSpecFromToolLibrary(SingleProjectInfo toolLibraryRange, String commandName, IEnumerable`1 args, IProject project)
   at Microsoft.DotNet.Cli.Utils.ProjectToolsCommandResolver.ResolveCommandSpecFromAllToolLibraries(IEnumerable`1 toolsLibraries, String commandName, IEnumerable`1 args, IProject project)
   at Microsoft.DotNet.Cli.Utils.ProjectToolsCommandResolver.ResolveFromProjectTools(CommandResolverArguments commandResolverArguments)
   at Microsoft.DotNet.Cli.Utils.ProjectToolsCommandResolver.Resolve(CommandResolverArguments commandResolverArguments)
   at Microsoft.DotNet.Cli.Utils.CompositeCommandResolver.Resolve(CommandResolverArguments commandResolverArguments)
   at Microsoft.DotNet.Cli.Utils.CommandResolver.TryResolveCommandSpec(ICommandResolverPolicy commandResolverPolicy, String commandName, IEnumerable`1 args, NuGetFramework framework, String configuration, String outputPath, String applicationName)
   at Microsoft.DotNet.Cli.Utils.Command.Create(ICommandResolverPolicy commandResolverPolicy, String commandName, IEnumerable`1 args, NuGetFramework framework, String configuration, String outputPath, String applicationName)
   at Microsoft.DotNet.Cli.Utils.Command.Create(String commandName, IEnumerable`1 args, NuGetFramework framework, String configuration, String outputPath, String applicationName)
   at Microsoft.DotNet.Cli.Program.ProcessArgs(String[] args, ITelemetry telemetryClient)
   at Microsoft.DotNet.Cli.Program.Main(String[] args)