解決BUG:CS1617: 選項“6”對 /langversion 無效；必須是 ISO-1、ISO-2、3、4、5 或 Default

vs 2015的項目用vs2013，更改.net版本之後，打開會報以下錯誤，原因是配置文件修改出了問題。已經驗證是BUG

你只需要把Web.config換成以前的就好了。

 

https://connect.microsoft.com/VisualStudio/feedback/details/1607466

 

編譯錯誤

說明: 在編譯向該請求提供服務所需資源的過程中出現錯誤。請檢查下列特定錯誤詳細信息並適當地修改源代碼。 

編譯器錯誤消息: CS1617: 選項“6”對 /langversion 無效；必須是 ISO-1、ISO-2、3、4、5 或 Default

源錯誤:

[沒有相關的源行]

源文件:    行: 0 

顯示詳細的編譯器輸出:

C:\Program Files (x86)\IIS Express> "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe" /t:library /utf8output /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Xml.Linq\v4.0_4.0.0.0__b77a5c561934e089\System.Xml.Linq.dll" /R:"C:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\cdd23202\4339e144\assembly\dl3\544a9d52\2461f901_fe19d201\System.Web.WebPages.Razor.dll" /R:"C:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\cdd23202\4339e144\assembly\dl3\529a27e0\0b00a80c_fe19d201\Microsoft.AI.WindowsServer.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_32\System.Data\v4.0_4.0.0.0__b77a5c561934e089\System.Data.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Data.DataSetExtensions\v4.0_4.0.0.0__b77a5c561934e089\System.Data.DataSetExtensions.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.WorkflowServices\v4.0_4.0.0.0__31bf3856ad364e35\System.WorkflowServices.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Xml\v4.0_4.0.0.0__b77a5c561934e089\System.Xml.dll" /R:"C:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\cdd23202\4339e144\assembly\dl3\28bdb842\f01b1afa_fd19d201\Moq.dll" /R:"C:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\cdd23202\4339e144\assembly\dl3\d39f5c1e\927e662b_fe19d201\EntityFramework.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Web.WebPages.Deployment\v4.0_2.0.0.0__31bf3856ad364e35\System.Web.WebPages.Deployment.dll" /R:"C:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\cdd23202\4339e144\assembly\dl3\db05be7e\04b6c495_fd19d201\Ninject.dll" /R:"C:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\cdd23202\4339e144\assembly\dl3\0cdaa9c9\a089ca12_fe19d201\Microsoft.ApplicationInsights.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.ServiceModel.Activities\v4.0_4.0.0.0__31bf3856ad364e35\System.ServiceModel.Activities.dll" /R:"C:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\cdd23202\4339e144\assembly\dl3\484eb265\b63b6414_fe19d201\Microsoft.AI.Agent.Intercept.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\Microsoft.Web.Infrastructure\v4.0_1.0.0.0__31bf3856ad364e35\Microsoft.Web.Infrastructure.dll" /R:"C:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\cdd23202\4339e144\assembly\dl3\2d1cb127\9163c10b_fe19d201\Microsoft.AI.ServerTelemetryChannel.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.ServiceModel\v4.0_4.0.0.0__b77a5c561934e089\System.ServiceModel.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Web.Extensions\v4.0_4.0.0.0__31bf3856ad364e35\System.Web.Extensions.dll" /R:"C:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\cdd23202\4339e144\assembly\dl3\a7fb7fae\d645c502_fe19d201\System.Web.WebPages.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\Microsoft.CSharp\v4.0_4.0.0.0__b03f5f7f11d50a3a\Microsoft.CSharp.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.ServiceModel.Activation\v4.0_4.0.0.0__31bf3856ad364e35\System.ServiceModel.Activation.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.ServiceModel.Web\v4.0_4.0.0.0__31bf3856ad364e35\System.ServiceModel.Web.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\Microsoft.VisualStudio.Web.PageInspector.Loader\v4.0_1.0.0.0__b03f5f7f11d50a3a\Microsoft.VisualStudio.Web.PageInspector.Loader.dll" /R:"C:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\cdd23202\4339e144\assembly\dl3\71e15e00\013e5d1a_fe19d201\EntityFramework.SqlServer.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Activities\v4.0_4.0.0.0__31bf3856ad364e35\System.Activities.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_32\System.EnterpriseServices\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.EnterpriseServices.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.IdentityModel\v4.0_4.0.0.0__b77a5c561934e089\System.IdentityModel.dll" /R:"C:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\cdd23202\4339e144\assembly\dl3\b11ca467\a0584710_fe19d201\Microsoft.AI.DependencyCollector.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Web.DynamicData\v4.0_4.0.0.0__31bf3856ad364e35\System.Web.DynamicData.dll" /R:"C:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\cdd23202\4339e144\assembly\dl3\dabad01c\5d703b03_fe19d201\System.Web.Helpers.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Core\v4.0_4.0.0.0__b77a5c561934e089\System.Core.dll" /R:"C:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\cdd23202\4339e144\assembly\dl3\0094390f\614f3503_fe19d201\System.Web.WebPages.Deployment.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Runtime.Serialization\v4.0_4.0.0.0__b77a5c561934e089\System.Runtime.Serialization.dll" /R:"C:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\cdd23202\4339e144\assembly\dl3\10454fb8\57a6f007_fe19d201\System.Web.Razor.dll" /R:"C:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\cdd23202\4339e144\assembly\dl3\701dd014\5d70040a_fe19d201\System.Web.Mvc.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Web.Services\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Web.Services.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Configuration\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Configuration.dll" /R:"C:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\cdd23202\4339e144\assembly\dl3\1df88e37\e7234701_fe19d201\Microsoft.CodeDom.Providers.DotNetCompilerPlatform.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.ComponentModel.DataAnnotations\v4.0_4.0.0.0__31bf3856ad364e35\System.ComponentModel.DataAnnotations.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Drawing\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Drawing.dll" /R:"C:\Windows\Microsoft.NET\Framework\v4.0.30319\mscorlib.dll" /R:"C:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\cdd23202\4339e144\assembly\dl3\22b02f8d\844be681_ff19d201\SportsStore.WebUI.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System\v4.0_4.0.0.0__b77a5c561934e089\System.dll" /R:"C:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\cdd23202\4339e144\assembly\dl3\d4100698\e847c10c_fe19d201\Microsoft.AI.Web.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Web.ApplicationServices\v4.0_4.0.0.0__31bf3856ad364e35\System.Web.ApplicationServices.dll" /R:"C:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\cdd23202\4339e144\assembly\dl3\d25b5cd5\b6eb0c80_ff19d201\SportsStore.Domain.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_32\System.Web\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Web.dll" /R:"C:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\cdd23202\4339e144\assembly\dl3\11b8ae51\0fc53c10_fe19d201\Microsoft.AI.PerfCounterCollector.dll" /out:"C:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\cdd23202\4339e144\App_global.asax.7axkitzh.dll" /D:DEBUG /debug+ /optimize- /warnaserror /w:4 /nowarn:1659;1699;1701;612;618 /langversion:6 /nowarn:1659;1699;1701  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\cdd23202\4339e144\App_global.asax.7axkitzh.0.cs" "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\cdd23202\4339e144\App_global.asax.7axkitzh.1.cs"


Microsoft (R) Visual C# Compiler version 4.6.1586.0

for C# 5
Copyright (C) Microsoft Corporation. All rights reserved.



This compiler is provided as part of the Microsoft (R) .NET Framework, but only supports language versions up to C# 5, which is no longer the latest version. For compilers that support newer versions of the C# programming language, see http://go.microsoft.com/fwlink/?LinkID=533240

error CS1617: 選項“6”對 /langversion 無效；必須是 ISO-1、ISO-2、3、4、5 或 Default