升级到vs 2010 + net 4 =>类型"System.Func< TResult>" 'c:\ Program Files(x86)\ Reference Assemblies \ Microsoft \ Framework \ v3.5 \ System.Core.dll'和'c:\ WINDOWS \ microsoft.net \ Framework64 \ v4.0.30319 \ mscorlib.dll中都存在' [英] upgrade to vs 2010 + net 4 => The type 'System.Func<TResult>' exists in both 'c:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.5\System.Core.dll' and 'c:\WINDOWS\microsoft.net\Framework64\v4.0.30319\mscorlib.dll'

问题描述

嗨.

 

我尝试将Sharepoint工作流解决方案从vs 2008升级到vs 2010，但遇到以下编译错误:

I've tried upgrading my sharepoint workflow solution from vs 2008 to vs 2010 but I ran into the following compile error:

类型'System.Func< TResult>' 'c:\ Program Files(x86)\ Reference Assemblies \ Microsoft \ Framework \ v3.5 \ System.Core.dll'和'c:\ WINDOWS \ microsoft.net \ Framework64 \ v4.0.30319 \ mscorlib.dll中都存在'

The type 'System.Func<TResult>' exists in both 'c:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.5\System.Core.dll' and 'c:\WINDOWS\microsoft.net\Framework64\v4.0.30319\mscorlib.dll'

有什么想法吗?

 

我正在使用64位计算机.

I'm using a 64 bit machine.

 

谢谢

 

推荐答案

您很可能无法将3.5版的System.Core与.NET Framework混合使用4.0.您应该改为引用System.Core 4.0.

Most likely you couldn't mix System.Core from 3.5 with .NET Framework 4.0. You should reference System.Core 4.0 instead.

这篇关于升级到vs 2010 + net 4 =>类型"System.Func&lt; TResult&gt;" 'c:\ Program Files(x86)\ Reference Assemblies \ Microsoft \ Framework \ v3.5 \ System.Core.dll'和'c:\ WINDOWS \ microsoft.net \ Framework64 \ v4.0.30319 \ mscorlib.dll中都存在'的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！