我已经看到了类似的问题,我已经尝试了所有发布的解决方案。在过去的两天里,我一直试图解决这个看似简单的问题而且无处可去。当我尝试从程序包管理器控制台运行Add-Migration或Update-Database时,出现以下错误:
更新 - 数据库:术语“更新 - 数据库”未被识别为cmdlet,函数,脚本文件或可操作程序的名称。检查名称的拼写,或者如果包含路径,请验证路径是否正确,然后重试。 在行:1个字符:1 +更新 - 数据库 + ~~~~~~~~~~~~~~~ + CategoryInfo:ObjectNotFound:(Update-Database:String)[],CommandNotFoundException + FullyQualifiedErrorId:CommandNotFoundException
或
添加迁移:术语“添加迁移”不会被识别为cmdlet,函数,脚本文件或可操作程序的名称。检查名称的拼写,或者如果包含路径,请验证路径是否正确,然后重试。 在行:1个字符:1 +添加迁移TestMigration + ~~~~~~~~~~~~~ + CategoryInfo:ObjectNotFound :( Add-Migration:String)[],CommandNotFoundException + FullyQualifiedErrorId:CommandNotFoundException
这是我的project.json:
{
"dependencies": {
"Braintree": "3.5.0",
"CoreCompat.System.Drawing": "1.0.0-beta006",
"Google.Apis.Auth": "1.20.0",
"Google.Apis.Oauth2.v2": "1.20.0.672",
"MailKit": "1.10.1",
"Microsoft.AspNet.StaticFiles": "1.0.0-rc1-final",
"Microsoft.AspNetCore.Mvc": "1.0.0",
"Microsoft.AspNetCore.Server.IISIntegration": "1.0.0",
"Microsoft.AspNetCore.Server.IISIntegration.Tools": "1.0.0-preview2-final",
"Microsoft.AspNetCore.Server.Kestrel": "1.0.0",
"Microsoft.EntityFrameworkCore.SqlServer": "1.0.0",
"Microsoft.EntityFrameworkCore.Tools": "1.0.0-preview2-final",
"Microsoft.Extensions.Configuration.EnvironmentVariables": "1.0.0",
"Microsoft.Extensions.Configuration.FileExtensions": "1.0.0",
"Microsoft.Extensions.Configuration.Json": "1.0.0",
"Microsoft.Extensions.Logging": "1.0.0",
"Microsoft.Extensions.Logging.Console": "1.0.0",
"Microsoft.Extensions.Logging.Debug": "1.0.0",
"Microsoft.Extensions.Options.ConfigurationExtensions": "1.0.0",
"Microsoft.NETCore.App": {
"version": "1.0.0",
"type": "platform"
},
"RazorLight": "1.0.0-rc1",
"RazorLight.MVC": "1.0.3",
"SendGrid.NetCore": "1.0.0-rtm-00002",
"Tinify": "1.5.0"
},
"tools": {
"Microsoft.AspNetCore.Server.IISIntegration.Tools": "1.0.0-preview2-final",
"Microsoft.EntityFrameworkCore.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
}
},
"publishOptions": {
"include": [
"wwwroot",
"Views",
"Areas/**/Views",
"appsettings.json",
"web.config"
]
},
"scripts": {
"postpublish": [ "dotnet publish-iis --publish-folder %publish:OutputPath% --framework %publish:FullTargetFramework%" ]
}
}
我尝试运行dotnet restore
,重新启动Visual Studio,以管理员身份运行Visual Studio,重新启动计算机,删除EntityFramework的依赖项并重新添加它们。
我需要能够运行Add-Migration来更新我的SQL数据库,任何帮助都会受到赞赏。
修改
我最后只创建了一个新项目,再次安装所有依赖项并复制我的代码。这就行了,但实际的解决方案仍然可以提供帮助,并帮助处理类似问题的其他人。
答案 0 :(得分:1)
只需从nuget安装Microsoft.EntityFrameworkCore.Tools
软件包:
安装软件包Microsoft.EntityFrameworkCore.Tools-版本3.1.1
您还可以使用此链接来安装最新版本: Nuget package link