kpm restore ubuntu：请求的功能未实现

Question

我尝试在我的 Ubuntu 14.04 上运行 asp.net Home 示例 但是在每次 kpm 还原时，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.

如 kvm 列表所示，我安装了 KRE-Mono.1.0.0-beta2 所以我尝试更改 package.json 以获取 1.0.0-beta2 包，但可能与此无关:(

我的单声道版本是：

wuetrs@wuetrs-N750JK:~$ mono --version
Mono JIT compiler version 3.2.8 (Debian 3.2.8+dfsg-4ubuntu1)
Copyright (C) 2002-2014 Novell, Inc, Xamarin Inc and Contributors. www.mono-project.com
TLS:           __thread
SIGSEGV:       altstack
Notifications: epoll
Architecture:  amd64
Disabled:      none
Misc:          softdebug 
LLVM:          supported, not enabled.
GC:            sgen

有什么想法吗？

Answer 1

解决方案，建议 b @SuhasJoshi 是正确的：

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

然后继续： http://www.mono-project.com/docs/getting-started/install/linux/