mysql - Ubuntu Linux 上的 dotnet 核心使用 asp.net MVC 和 EF MySQL 错误 NU1001 : cannot restore MySql. Data.EntityFrameworkCore

Question

我构建了一个简单、扁平的 dotnet 核心 MVC 应用程序，我希望它能在 Linux 上运行。它使用 EF 从 mysql 表中提取一些记录并将它们显示在 View 中。这一切都在我的主机 (Win10) 上构建和运行，但不会在我已经启动以进行测试的 Ubuntu VM 中运行

执行“dotnet restore”后，“dotnet build”或“dotnet run”出现以下错误:

Project CoreCrossPlatformFlat (.NETCoreApp,Version=v1.0) will be compiled because the version or bitness of the CLI changed since the last build Compiling CoreCrossPlatformFlat for .NETCoreApp,Version=v1.0 /opt/dotnet/corecrossplatform/src/CoreCrossPlatformFlat/project.json(25,52): error NU1001: The dependency MySql.Data.EntityFrameworkCore >= 7.0.4-IR-191 could not be resolved.

Compilation failed. 0 Warning(s) 1 Error(s)

仅供引用:这是“dotnet --info”报告的内容:

.NET Command Line Tools (1.0.0-preview2-003121)

Product Information: Version: 1.0.0-preview2-003121 Commit SHA-1 hash: 1e9d529bc5

Runtime Environment: OS Name: ubuntu OS Version: 16.04 OS Platform: Linux RID: ubuntu.16.04-x64

对于 VM，我遵循了以下说明:

https://www.microsoft.com/net/core#ubuntu

project.json 看起来像这样:

{
  "dependencies": {
    "Microsoft.NETCore.App": {
      "version": "1.0.0",
      "type": "platform"
    },
    "Microsoft.AspNetCore.Diagnostics": "1.0.0",
    "Microsoft.AspNetCore.Mvc": "1.0.0",
    "Microsoft.AspNetCore.Razor.Tools": {
      "version": "1.0.0-preview2-final",
      "type": "build"
    },
    "Microsoft.AspNetCore.Server.IISIntegration": "1.0.0",
    "Microsoft.AspNetCore.Server.Kestrel": "1.0.0",
    "Microsoft.AspNetCore.StaticFiles": "1.0.0",
    "Microsoft.Extensions.Configuration.EnvironmentVariables": "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.VisualStudio.Web.BrowserLink.Loader": "14.0.0",
    "Microsoft.EntityFrameworkCore": "1.0.0",
    "MySql.Data.Core": "7.0.4-IR-191",
    "MySql.Data.EntityFrameworkCore": "7.0.4-IR-191"
  },

  "tools": {
    "BundlerMinifier.Core": "2.0.238",
    "Microsoft.AspNetCore.Razor.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
    }
  },

  "publishOptions": {
    "include": [
      "wwwroot",
      "Views",
      "Areas/**/Views",
      "appsettings.json",
      "web.config"
    ]
  },

  "scripts": {
    "prepublish": [ "bower install", "dotnet bundle" ],
    "postpublish": [ "dotnet publish-iis --publish-folder %publish:OutputPath% --framework %publish:FullTargetFramework%" ]
  }
}

如果有帮助，这里是解决方案的压缩包: https://s3.amazonaws.com/kilonova-public/code/CoreCrossPlatformFlat.zip

Answer 1

今天遇到同样的问题。请尝试删除项目文件夹中除 project.json 文件和所有 .cs 文件之外的所有文件和文件夹。然后 dotnet restore 和 dotnet run。这个对我有用。 :)