Question

我想在Visual Studio中从命令行运行dnx命令，但它不起作用。

如果我输入命令：

 dnx ef

我收到错误：

System.InvalidOperationException：没有类型的服务＆＃39; Microsoft.Dnx.Runtime.IApplicationEnvironment＆＃39;已经注册   在Microsoft.Framework.DependencyInjection.ServiceProviderExtensions.GetRequiredService（IServiceProvider提供程序，类型serviceType）
  在Microsoft.Framework.DependencyInjection.ServiceProviderExtensions.GetRequiredService [T]（IServiceProvider提供者）
  在Microsoft.Data.Entity.Commands.Program..ctor（IServiceProvider dnxServices）

我的project.json包含此内容：

 "dependencies": {
    "Microsoft.AspNet.Mvc": "6.0.0-rc1-final",
    "Microsoft.AspNet.IISPlatformHandler": "1.0.0-beta8",
    "Microsoft.AspNet.Server.Kestrel": "1.0.0-rc1-final",
    "Microsoft.AspNet.StaticFiles": "1.0.0-rc1-final",
    "Microsoft.AspNet.Mvc.TagHelpers": "6.0.0-rc1-final",
    "Microsoft.Framework.Configuration.Json": "1.0.0-beta8",
    "EntityFramework.Core": "7.0.0-rc1-final",
    "EntityFramework.MicrosoftSqlServer": "7.0.0-rc1-final",
    "EntityFramework.Commands": "7.0.0-beta8",
    "Microsoft.Framework.SecretManager": "1.0.0-beta8"
 },

"commands": {
    "web": "Microsoft.AspNet.Server.Kestrel",
    "ef": "EntityFramework.Commands"
},

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

DNX版本：

 Microsoft .NET Execution environment
 Version:      1.0.0-rc1-16231
 Type:         Clr
 Architecture: x86
 OS Name:      Windows
 OS Version:   10.0
 Runtime Id:   win10-x86

DNVM版本：

 1.0.0-rc1-15540

DNVM列表：

 Active Version           Runtime Architecture OperatingSystem Alias
 ------ -------           ------- ------------ --------------- -----
     1.0.0-rc1-update1 clr     x64          win
*    1.0.0-rc1-update1 clr     x86          win             default
     1.0.0-rc1-update1 coreclr x64          win
     1.0.0-rc1-update1 coreclr x86          win

Answer 1

我明白了。如果你得到这样的错误，可能是因为错误依赖。他们需要匹配您的环境和其他依赖项。我安装了所有的lates并且它工作了。这是我的最终依赖：

 "dependencies": {
    "Microsoft.AspNet.Mvc": "6.0.0-rc1-final",
    "Microsoft.AspNet.IISPlatformHandler": "1.0.0-rc1-final",
    "Microsoft.AspNet.Server.Kestrel": "1.0.0-rc1-final",
    "Microsoft.AspNet.StaticFiles": "1.0.0-rc1-final",
    "Microsoft.AspNet.Mvc.TagHelpers": "6.0.0-rc1-final",
    "Microsoft.Framework.Configuration.Json": "1.0.0-beta8",
    "EntityFramework.Core": "7.0.0-rc1-final",
    "EntityFramework.MicrosoftSqlServer": "7.0.0-rc1-final",
    "EntityFramework.Commands": "7.0.0-rc1-final",
    "Microsoft.Framework.SecretManager": "1.0.0-beta8"
},

ASP.NET MVC在命令行上运行Entity Framework命令

1 个答案: