我正在尝试使用EF7 RC1从现有数据库中按照以下说明使用脚手架 https://media.readthedocs.org/pdf/ef/latest/ef.pdf
从包管理器控制台运行命令时
Scaffold-DbContext -provider EntityFramework.MicrosoftSqlServer -connection "Server=(localdb)\MSSQLLocalDB;Initial Catalog=Clients_Local;Integrated Security=True;Connect Timeout=30;Encrypt=False;TrustServerCertificate=False;ApplicationIntent=ReadWrite;MultiSubnetFailover=False"
我收到此错误
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 -provider EntityFramework.MicrosoftSqlServer -conn ...
+ ~~~~~~~~~~~~~~~~~~
+ CategoryInfo : ObjectNotFound: (Scaffold-DbContext:String) [], CommandNotFoundException
+ FullyQualifiedErrorId : CommandNotFoundException
我的project.json看起来像这样
{
"userSecretsId": "aspnet5-WebApplication1-1702fb51-ff21-46b5-8685-eb0834dd86f0",
"version": "1.0.0-*",
"compilationOptions": {
"emitEntryPoint": true
},
"dependencies": {
"EntityFramework.Commands": "7.0.0-rc1-final",
"EntityFramework.MicrosoftSqlServer": "7.0.0-rc1-final",
"EntityFramework.MicrosoftSqlServer.Design": "7.0.0-rc1-final",
"Microsoft.AspNet.Authentication.Cookies": "1.0.0-rc1-final",
"Microsoft.AspNet.Diagnostics.Entity": "7.0.0-rc1-final",
"Microsoft.AspNet.Identity.EntityFramework": "3.0.0-rc1-final",
"Microsoft.AspNet.IISPlatformHandler": "1.0.0-rc1-final",
"Microsoft.AspNet.Mvc": "6.0.0-rc1-final",
"Microsoft.AspNet.Mvc.TagHelpers": "6.0.0-rc1-final",
"Microsoft.AspNet.Server.Kestrel": "1.0.0-rc1-final",
"Microsoft.AspNet.StaticFiles": "1.0.0-rc1-final",
"Microsoft.AspNet.Tooling.Razor": "1.0.0-rc1-final",
"Microsoft.Extensions.CodeGenerators.Mvc": "1.0.0-rc1-final",
"Microsoft.Extensions.Configuration.FileProviderExtensions": "1.0.0-rc1-final",
"Microsoft.Extensions.Configuration.Json": "1.0.0-rc1-final",
"Microsoft.Extensions.Configuration.UserSecrets": "1.0.0-rc1-final",
"Microsoft.Extensions.Logging": "1.0.0-rc1-final",
"Microsoft.Extensions.Logging.Console": "1.0.0-rc1-final",
"Microsoft.Extensions.Logging.Debug": "1.0.0-rc1-final",
"Microsoft.VisualStudio.Web.BrowserLink.Loader": "14.0.0-rc1-final"
},
"commands": {
"web": "Microsoft.AspNet.Server.Kestrel",
"ef": "EntityFramework.Commands"
},
"frameworks": {
"dnx451": { },
"dnxcore50": { }
},
"exclude": [
"wwwroot",
"node_modules"
],
"publishExclude": [
"**.user",
"**.vspscc"
],
"scripts": {
"prepublish": [ "npm install", "bower install", "gulp clean", "gulp min" ]
}
}
在研究了这个问题之后,我删除了C:\ Users \ .dnx \ bin的内容并使用
更新了dnvm
https://github.com/aspnet/Home#cmd
但我仍然得到同样的错误。
答案 0 :(得分:2)
看起来您必须使用dnx命令,而不是包管理器控制台,如RC1文档中所述:http://docs.efproject.net/en/latest/getting-started/aspnet5/existing-db.html
更新:EF文档已经发生了一些变化。现在可以在此处找到dnx命令: http://docs.efproject.net/en/latest/platforms/aspnetcore/existing-db.html
如果它再次移动,这是相关的命令:
dnx ef dbcontext scaffold "Server=(localdb)\mssqllocaldb;Database=Blogging;Trusted_Connection=True;" EntityFramework.MicrosoftSqlServer --outputDir Models
答案 1 :(得分:2)
对于RC2,语法/ CLI已更改。您几乎可以按照此处的说明进行操作:https://docs.efproject.net/en/latest/platforms/aspnetcore/existing-db.html,但我必须使用这些命令来生成脚手架。
我是从命令行运行的,而不是从程序包管理器控制台运行的。
您可以使用它来检查参数和选项:dotnet ef dbcontext scaffold --help
实施例:
dotnet ef dbcontext scaffold "Server=(LocalDB)\MSSQLLocalDB;Database=Blogging;Trusted_Connection=True;" Microsoft.EntityFrameworkCore.SqlServer -c BloggingContext -o BloggingModels
答案 2 :(得分:1)
我发现正确的解决方法是安装Powershell 5并重新启动。请注意,DNX命令也已替换为dotnet命令。