Asp.net kpm restore ubuntu:未实现请求的功能

我尝试在我的Ubuntu 14.04上运行asp.net Home示例 但在每次kpm恢复中，我都会得到以下信息：

wuetrs@wuetrs-N750JK:~/repos/Home/samples/HelloMvc$ kvm list

Active Version              Runtime Location             Alias
------ -------              ------- --------             -----
  *    1.0.0-beta2          Mono    ~/.kre/packages      default

wuetrs@wuetrs-N750JK:~/repos/Home/samples/HelloMvc$ kpm restore
Restoring packages for /home/wuetrs/repos/Home/samples/HelloMvc/project.json
  CACHE https://www.nuget.org/api/v2/FindPackagesById()?Id='Kestrel'
  CACHE https://www.nuget.org/api/v2/package/Kestrel/1.0.0-beta2
  CACHE https://www.nuget.org/api/v2/FindPackagesById()?Id='Microsoft.AspNet.Diagnostics'
  GET https://www.nuget.org/api/v2/package/Microsoft.AspNet.Diagnostics/1.0.0-beta2.
  CACHE https://www.nuget.org/api/v2/FindPackagesById()?Id='Microsoft.AspNet.Hosting'
  CACHE https://www.nuget.org/api/v2/package/Microsoft.AspNet.Hosting/1.0.0-beta2
  CACHE https://www.nuget.org/api/v2/FindPackagesById()?Id='Microsoft.AspNet.Mvc'
  GET https://www.nuget.org/api/v2/package/Microsoft.AspNet.Mvc/6.0.0-beta2.
  CACHE https://www.nuget.org/api/v2/FindPackagesById()?Id='Microsoft.AspNet.Server.WebListener'
  GET https://www.nuget.org/api/v2/package/Microsoft.AspNet.Server.WebListener/1.0.0-beta2.
----------
System.NotImplementedException: The requested feature is not implemented.
  at Microsoft.Framework.PackageManager.PackageUtilities+<OpenNuspecStreamFromNupkgAsync>d__1.MoveNext () [0x00000] in <filename unknown>:0 
--- End of stack trace from previous location where exception was thrown ---
  at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x00000] in <filename unknown>:0 
  at System.Runtime.CompilerServices.TaskAwaiter`1[System.IO.Stream].GetResult () [0x00000] in <filename unknown>:0 
  at Microsoft.Framework.PackageManager.Restore.NuGet.PackageFeed+<OpenNuspecStreamAsync>d__1.MoveNext () [0x00000] in <filename unknown>:0 
--- End of stack trace from previous location where exception was thrown ---
  at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x00000] in <filename unknown>:0 
  at System.Runtime.CompilerServices.TaskAwaiter`1[System.IO.Stream].GetResult () [0x00000] in <filename unknown>:0 
  at Microsoft.Framework.PackageManager.RemoteWalkProvider+<GetDependencies>d__1.MoveNext () [0x00000] in <filename unknown>:0 
--- End of stack trace from previous location where exception was thrown ---
  at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x00000] in <filename unknown>:0 
  at System.Runtime.CompilerServices.TaskAwaiter`1[System.Collections.Generic.IEnumerable`1[Microsoft.Framework.Runtime.LibraryDependency]].GetResult () [0x00000] in <filename unknown>:0 
  at Microsoft.Framework.PackageManager.RestoreOperations+<FindLibraryEntry>d__1.MoveNext () [0x00000] in <filename unknown>:0 
--- End of stack trace from previous location where exception was thrown ---
  at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x00000] in <filename unknown>:0 
  at System.Runtime.CompilerServices.TaskAwaiter`1[Microsoft.Framework.PackageManager.GraphItem].GetResult () [0x00000] in <filename unknown>:0 
  at Microsoft.Framework.PackageManager.RestoreOperations+<CreateGraphNode>d__1.MoveNext () [0x00000] in <filename unknown>:0 
--- End of stack trace from previous location where exception was thrown ---
  at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x00000] in <filename unknown>:0 
  at System.Runtime.CompilerServices.TaskAwaiter`1[Microsoft.Framework.PackageManager.GraphNode].GetResult () [0x00000] in <filename unknown>:0 
  at Microsoft.Framework.PackageManager.RestoreOperations+<CreateGraphNode>d__1.MoveNext () [0x00000] in <filename unknown>:0 
--- End of stack trace from previous location where exception was thrown ---
  at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x00000] in <filename unknown>:0 
  at System.Runtime.CompilerServices.TaskAwaiter`1[Microsoft.Framework.PackageManager.GraphNode[]].GetResult () [0x00000] in <filename unknown>:0 
  at Microsoft.Framework.PackageManager.RestoreCommand+<RestoreForProject>d__1.MoveNext () [0x00000] in <filename unknown>:0 
--- End of stack trace from previous location where exception was thrown ---
  at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x00000] in <filename unknown>:0 
  at System.Runtime.CompilerServices.TaskAwaiter`1[System.Boolean].GetResult () [0x00000] in <filename unknown>:0 
  at Microsoft.Framework.PackageManager.RestoreCommand+<ExecuteCommand>d__1.MoveNext () [0x00000] in <filename unknown>:0 
----------
Restore failed
The requested feature is not implemented.

---

有什么想法吗？

解决方案表明b@SuhasJoshi是正确的：

sudo apt-get remove mono-complete (or whatever package was installed)

那就说：

---

您有什么版本的mono？找到该版本的最佳方法是什么？wuetrs@wuetrs-N750JK:~$mono——版本mono JIT编译器版本3.2.8（Debian 3.2.8+dfsg-4ubuntu1）版权所有（C）2002-2014 Novell，Inc.和Xamarin Inc.及其贡献者。www.mono-project.com TLS:u thread SIGSEGV:altstack通知：epoll体系结构：amd64已禁用：无其他：softdebug LLVM:受支持，未启用。GC:SGENTH推荐的mono版本大于3.6.1，所以我认为你应该更新你的mono。我认为您是使用apt get安装mono的，apt get安装的是旧版本。试着从sourcesok编译并安装mono，明白了。我明天试试，然后告诉你。tk You面向未来用户：我对dnvm（kpm的最新版本）也有同样的问题，这个答案也解决了这个问题。为了它的价值，我这样做了，完全破坏了我的mono设置。您的可挤奶量可能会有所不同。

sudo apt-get remove mono-complete (or whatever package was installed)