.net - 在 VS 2015 社区版中将 .Net 框架从 4.5.2 更改为 4.5 时出现编译错误

Question

在 VS 2015 社区版中将我的 .Net 框架从 4.5.2 更改为 4.5 后。我收到以下错误。有谁知道是什么问题以及如何解决这个问题。看起来编译版本不同，但我已经将我的 web.config 修改为 4.5

Server Error in '/' Application.

Compilation Error Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately.

Compiler Error Message: CS1617: Invalid option '6' for /langversion; must be ISO-1, ISO-2, 3, 4, 5 or Default

Source Error:

[No relevant source lines]

Source File: Line: 0

Show Detailed Compiler Output:

C:\Program Files (x86)\IIS Express> "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe" /t:library /utf8output /R:"C:\Users\admin\AppData\Local\Temp\Temporary ASP.NET Files\root\479d40ee\add72695\assembly\dl3\31bb6ea7\6a8168a8_dae8d001\Microsoft.CodeDom.Providers.DotNetCompilerPlatform.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 (R) Visual C# Compiler version 4.6.0079.0

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: Invalid option '6' for /langversion; must be ISO-1, ISO-2, 3, 4, 5 or Default

Answer 1

我回答我的问题只是为了让其他用户知道解决方案是什么。经过一些谷歌搜索和个人研究。所以我恰恰做了两件事。

转到每个项目属性 -> Build -> Advance 并更改
语言版本到 C# 5.0

打开启动项目的 web.config(在我的例子中是 MVC)并删除
包含自定义编译信息的 codedom 部分

这解决了我的问题。