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我正在使用EF Core,我试图从数据库中生成模型。我创建了一个单独的ASP.NET核心Web应用程序,因为从类库中生成它并不适合我。EF核心数据库第一种方法:Scaffold-DbContext未被识别为cmdlet的名称
我已经从数据库成功生成了几次实体类,但突然停止工作。这真的很奇怪,因为我不是第一次,而且我也没有改变什么,是什么导致它停止工作?
这是project.json:
{
"dependencies": {
"Microsoft.EntityFrameworkCore.SqlServer": "1.1.0",
"Microsoft.EntityFrameworkCore.Tools": "1.1.0-preview4-final",
"Microsoft.AspNetCore.Mvc": "1.1.0",
"Microsoft.AspNetCore.Routing": "1.1.0",
"Microsoft.AspNetCore.Server.IISIntegration": "1.1.0",
"Microsoft.AspNetCore.Server.Kestrel": "1.1.0",
"Microsoft.Extensions.Configuration.EnvironmentVariables": "1.1.0",
"Microsoft.Extensions.Configuration.FileExtensions": "1.1.0",
"Microsoft.Extensions.Configuration.Json": "1.1.0",
"Microsoft.Extensions.Logging": "1.1.0",
"Microsoft.Extensions.Logging.Console": "1.1.0",
"Microsoft.Extensions.Logging.Debug": "1.1.0",
"Microsoft.Extensions.Options.ConfigurationExtensions": "1.1.0",
"Microsoft.NETCore.App": {
"version": "1.1.0",
"type": "platform"
},
"Microsoft.EntityFrameworkCore.SqlServer.Design": "1.1.0"
},
"tools": {
"Microsoft.EntityFrameworkCore.Tools": "1.0.0-preview2-final",
"Microsoft.AspNetCore.Server.IISIntegration.Tools": "1.0.0-preview2-final"
},
"frameworks": {
"netcoreapp1.0": {
"imports": [
"dotnet5.6",
"portable-net45+win8"
]
}
},
"buildOptions": {
"emitEntryPoint": true,
"preserveCompilationContext": true
},
"runtimeOptions": {
"configProperties": {
"System.GC.Server": true
}
}
}
这是命令:
Scaffold-DbContext "Server= myserver;Database=db;User Id=sa;Password=pass;" Microsoft.EntityFrameworkCore.SqlServer -OutputDir EntityModels
的错误:
Scaffold-DbContext : The term 'Scaffold-DbContext' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the
name, or if a path was included, verify that the path is correct and try again.
At line:1 char:1
+ Scaffold-DbContext "Server=myserver;Database=db...
+ ~~~~~~~~~~~~~~~~~~
+ CategoryInfo : ObjectNotFound: (Scaffold-DbContext:String) [], CommandNotFoundException
+ FullyQualifiedErrorId : CommandNotFoundException
我重新启动视觉工作室和问题依然存在。
我100%肯定这是工作与那些包裹。我试图改变它,因为你提到,它给了另一个错误:'System.AggregateException:发生一个或多个错误。 (尝试方法'Microsoft.EntityFrameworkCore.Scaffolding.Configuration.Internal.ModelConfiguration.get_EntityConfigurations()'以访问方法'Microsoft.EntityFrameworkCore.Metadata.Internal.EntityTypeNameComparer..ctor()'失败。)---> System.MethodAccessException :尝试按方法'Microsoft.EntityFrameworkCore.Scaffolding.Configuration.Internal.ModelConfiguration.get_EntityConfigurations()' – Coding
请参阅EF 1.1发行说明[此处](https://blogs.msdn.microsoft.com/dotnet/2016/11/ 16/announcing-entity-framework-core-1-1 /)并向下滚动到“升级工具包” - 您可能需要使用“Microsoft.EntityFrameworkCore.Tools.DotNet”工具。 – steamrolla
谢谢,但没有奏效。但是,同一个项目仍在另一台机器上工作。 – Coding