asp.net - 卡在ASP.NET 5/VS2015中的DNX引用问题上

Question

这是我得到的错误，我已经安装了Powershell 3.0，请帮助我解决该问题。不知道如何克服这个问题。我曾尝试升级dnvm，但没有任何效果:(

PATH=.\node_modules\.bin;C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\Extensions\Microsoft\Web Tools\External;%PATH%;C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\Extensions\Microsoft\Web Tools\External\git
C:\Users\Selva\.dnx\runtimes\dnx-clr-win-x86.1.0.0-beta8\bin\dnx.exe "C:\Users\Selva\.dnx\runtimes\dnx-clr-win-x86.1.0.0-beta8\bin\lib\Microsoft.DNX.PackageManager\Microsoft.DNX.PackageManager.dll" restore "C:\Projects\MVA\src\MVA" -s "C:\Program Files (x86)\Microsoft Web Tools\DNU"
System.IO.FileNotFoundException: Could not load file or assembly 'Microsoft.DNX.PackageManager' or one of its dependencies. The system cannot find the file specified.
File name: 'Microsoft.DNX.PackageManager'
   at System.Reflection.RuntimeAssembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks)
   at System.Reflection.RuntimeAssembly.nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks)
   at System.Reflection.RuntimeAssembly.InternalLoadAssemblyName(AssemblyName assemblyRef, Evidence assemblySecurity, RuntimeAssembly reqAssembly, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks)
   at System.Reflection.Assembly.Load(AssemblyName assemblyRef)
   at Microsoft.Dnx.Runtime.Loader.LoadContext.Load(AssemblyName assemblyName)
   at Microsoft.Dnx.Host.Bootstrapper.RunAsync(List`1 args, IRuntimeEnvironment env, String appBase, FrameworkName targetFramework)
   at Microsoft.Dnx.Host.RuntimeBootstrapper.ExecuteAsync(String[] args, BootstrapperContext bootstrapperContext)
   at Microsoft.Dnx.Host.RuntimeBootstrapper.Execute(String[] args, BootstrapperContext bootstrapperContext)
WRN: Assembly binding logging is turned OFF.
To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1.
Note: There is some performance penalty associated with assembly bind failure logging.
To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].
PATH=.\node_modules\.bin;C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\Extensions\Microsoft\Web Tools\External;%PATH%;C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\Extensions\Microsoft\Web Tools\External\git
C:\Users\Selva\.dnx\runtimes\dnx-clr-win-x86.1.0.0-beta8\bin\dnx.exe "C:\Users\Selva\.dnx\runtimes\dnx-clr-win-x86.1.0.0-beta8\bin\lib\Microsoft.DNX.PackageManager\Microsoft.DNX.PackageManager.dll" restore "C:\Projects\MVA\src\MVA" -f "C:\Program Files (x86)\Microsoft Web Tools\DNU"
System.IO.FileNotFoundException: Could not load file or assembly 'Microsoft.DNX.PackageManager' or one of its dependencies. The system cannot find the file specified.
File name: 'Microsoft.DNX.PackageManager'
   at System.Reflection.RuntimeAssembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks)
   at System.Reflection.RuntimeAssembly.nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks)
   at System.Reflection.RuntimeAssembly.InternalLoadAssemblyName(AssemblyName assemblyRef, Evidence assemblySecurity, RuntimeAssembly reqAssembly, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks)
   at System.Reflection.Assembly.Load(AssemblyName assemblyRef)
   at Microsoft.Dnx.Runtime.Loader.LoadContext.Load(AssemblyName assemblyName)
   at Microsoft.Dnx.Host.Bootstrapper.RunAsync(List`1 args, IRuntimeEnvironment env, String appBase, FrameworkName targetFramework)
   at Microsoft.Dnx.Host.RuntimeBootstrapper.ExecuteAsync(String[] args, BootstrapperContext bootstrapperContext)
   at Microsoft.Dnx.Host.RuntimeBootstrapper.Execute(String[] args, BootstrapperContext bootstrapperContext)
WRN: Assembly binding logging is turned OFF.
To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1.
Note: There is some performance penalty associated with assembly bind failure logging.
To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].
PATH=.\node_modules\.bin;C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\Extensions\Microsoft\Web Tools\External;%PATH%;C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\Extensions\Microsoft\Web Tools\External\git
C:\Users\Selva\.dnx\runtimes\dnx-clr-win-x86.1.0.0-beta8\bin\dnx.exe "C:\Users\Selva\.dnx\runtimes\dnx-clr-win-x86.1.0.0-beta8\bin\lib\Microsoft.DNX.PackageManager\Microsoft.DNX.PackageManager.dll" restore "C:\Projects\MVA\src\MVA" -f "C:\Program Files (x86)\Microsoft Web Tools\DNU"
System.IO.FileNotFoundException: Could not load file or assembly 'Microsoft.DNX.PackageManager' or one of its dependencies. The system cannot find the file specified.
File name: 'Microsoft.DNX.PackageManager'
   at System.Reflection.RuntimeAssembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks)
   at System.Reflection.RuntimeAssembly.nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks)
   at System.Reflection.RuntimeAssembly.InternalLoadAssemblyName(AssemblyName assemblyRef, Evidence assemblySecurity, RuntimeAssembly reqAssembly, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks)
   at System.Reflection.Assembly.Load(AssemblyName assemblyRef)
   at Microsoft.Dnx.Runtime.Loader.LoadContext.Load(AssemblyName assemblyName)
   at Microsoft.Dnx.Host.Bootstrapper.RunAsync(List`1 args, IRuntimeEnvironment env, String appBase, FrameworkName targetFramework)
   at Microsoft.Dnx.Host.RuntimeBootstrapper.ExecuteAsync(String[] args, BootstrapperContext bootstrapperContext)
   at Microsoft.Dnx.Host.RuntimeBootstrapper.Execute(String[] args, BootstrapperContext bootstrapperContext)
WRN: Assembly binding logging is turned OFF.
To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1.
Note: There is some performance penalty associated with assembly bind failure logging.
To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].

我的Project.Json如下图所示

{
  "webroot": "wwwroot",
  "userSecretsId": "aspnet5*************************************",
  "version": "1.0.0-*",

  "dependencies": {
    "EntityFramework.SqlServer": "7.0.0-beta5",
    "EntityFramework.Commands": "7.0.0-beta5",
    "Microsoft.AspNet.Mvc": "6.0.0-beta5",
    "Microsoft.AspNet.Mvc.TagHelpers": "6.0.0-beta5",
    "Microsoft.AspNet.Authentication.Cookies": "1.0.0-beta5",
    "Microsoft.AspNet.Authentication.Facebook": "1.0.0-beta5",
    "Microsoft.AspNet.Authentication.Google": "1.0.0-beta5",
    "Microsoft.AspNet.Authentication.MicrosoftAccount": "1.0.0-beta5",
    "Microsoft.AspNet.Authentication.Twitter": "1.0.0-beta5",
    "Microsoft.AspNet.Diagnostics": "1.0.0-beta5",
    "Microsoft.AspNet.Diagnostics.Entity": "7.0.0-beta5",
    "Microsoft.AspNet.Identity.EntityFramework": "3.0.0-beta5",
    "Microsoft.AspNet.Server.IIS": "1.0.0-beta5",
    "Microsoft.AspNet.Server.WebListener": "1.0.0-beta5",
    "Microsoft.AspNet.StaticFiles": "1.0.0-beta5",
    "Microsoft.AspNet.Tooling.Razor": "1.0.0-beta5",
    "Microsoft.Framework.Configuration.Abstractions": "1.0.0-beta5",
    "Microsoft.Framework.Configuration.Json": "1.0.0-beta5",
    "Microsoft.Framework.Configuration.UserSecrets": "1.0.0-beta5",
    "Microsoft.Framework.Logging": "1.0.0-beta5",
    "Microsoft.Framework.Logging.Console": "1.0.0-beta5",
    "Microsoft.VisualStudio.Web.BrowserLink.Loader": "14.0.0-beta5"
  },

  "commands": {
    "web": "Microsoft.AspNet.Hosting --config hosting.ini",
    "ef": "EntityFramework.Commands"
  },

  "frameworks": {
    "dnx451": { },
    "dnxcore50": { }
  },

  "exclude": [
    "wwwroot",
    "node_modules",
    "bower_components"
  ],
  "publishExclude": [
    "node_modules",
    "bower_components",
    "**.xproj",
    "**.user",
    "**.vspscc"
  ],
  "scripts": {
    "prepublish": [ "npm install", "bower install", "gulp clean", "gulp min" ]
  }
}

Answer 1

我的印象是您的版本不匹配(旧项目和框架的较新版本)。

首先，请确保您已安装 beta8 tooling。然后，进入您的项目属性，并确保将目标运行时更改为beta8。

最后，检查您的project.json，以确保没有剩下beta8软件包。

在project.json中，确保删除对beta5的任何引用，并用beta8替换它们。有些软件包已被重命名，有些软件包已合并，因此您可能无法替换所有软件包。

如果您正在运行IIS，并且依赖于Microsoft.AspNet.Server.IIS，请确保在app.RunIISPipeline();方法上添加Startup.cs/Configure()。