【发布时间】:2016-09-08 15:55:44
【问题描述】:
我正在创建一个概念证明解决方案,该解决方案将使用实体框架进行共享项目。我希望 UWP 项目和 .Net Core 网站引用共享项目。我能够让网站引用该项目并正确使用 Entity Framework Core。当我尝试让 UWP 应用程序使用相同的代码时,它会编译,但在运行时会失败。我也尝试过使用 NetStandard1.4 和 NetStandard1.6 更改框架,但是 Entity Framework Core 无法正常工作。
我的共享项目是一个 .Net Core 类库(不是 VS 中的实际共享项目类型)。
这是我在运行 UWP 应用程序时遇到的错误。当我尝试创建一个继承自 DbContext 的新 Context 类时会发生这种情况:
“System.IO.FileLoadException”类型的异常发生在 mscorlib.ni.dll 但未在用户代码中处理
附加信息:无法加载文件或程序集 'System.Runtime,版本=4.1.0.0,文化=中性, PublicKeyToken=b03f5f7f11d50a3a' 或其依赖项之一。这 定位程序集的清单定义与程序集不匹配 参考。 (HRESULT 异常:0x80131040)
这是我用于共享项目的 project.json。
{
"version": "1.0.0-*",
"dependencies": {
"Microsoft.EntityFrameworkCore.Sqlite": "1.0.0",
"Microsoft.EntityFrameworkCore.Tools": "1.0.0-preview2-final",
"NETStandard.Library": "1.6.0",
"System.ComponentModel.Annotations": "4.1.0",
"Microsoft.NETCore.App": {
"version": "1.0.0",
"type": "platform"
}
},
"frameworks": {
"netcoreapp1.0": {
"imports": [
"dotnet5.6",
"portable-net45+win8"
]
}
}
}
这是 UWP 项目的 project.json
{
"dependencies": {
"Microsoft.EntityFrameworkCore.Sqlite": "1.0.0",
"Microsoft.EntityFrameworkCore.Tools": "1.0.0-preview2-final",
"Microsoft.NETCore.UniversalWindowsPlatform": "5.2.2"
},
"frameworks": {
"uap10.0": {
"imports": [
"netcoreapp1.0"
]
}
},
"runtimes": {
"win10-arm": {},
"win10-arm-aot": {},
"win10-x86": {},
"win10-x86-aot": {},
"win10-x64": {},
"win10-x64-aot": {}
}
}
这是网站项目的 project.json
{
"dependencies": {
"Domain": "1.0.0-*",
"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.EntityFrameworkCore.Sqlite": "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.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"
},
"Microsoft.VisualStudio.Web.BrowserLink.Loader": "14.0.0"
},
"tools": {
"Microsoft.EntityFrameworkCore.Tools": "1.0.0-preview2-final",
"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%" ]
}
}
【问题讨论】:
-
仅靠json文件是无法解析的。什么是“netcoreapp1.0”,这是你的共享项目吗?这个共享项目是什么类型的?运行时组件?如果可以构建成功,能否请您调试异常抛出的位置?
-
我不确定如何解释 notcoreapp1.0,但我找到了有关 stackoverflow 问题的更多信息:link。我将使用您询问的其他信息编辑我的帖子。
-
嗨!您使用哪种类型的项目来分离 EFCore?谢谢!这里不清楚要做什么github.com/aspnet/EntityFrameworkCore/issues/9672
标签: .net asp.net-core uwp entity-framework-core