具体报错信息如下，Could not find a compatible version of ildasm to run on assembly H:\Production\DBC.Ors.UI.Web.Mvc.ERP\bin\DBC.Core.dll. This assembly was originally built with .NET Framework v4.0.30319.
看到这个报错，我和小伙伴们都惊呆了，怎么办？
在混淆的时候报错了，错误描述大致如下：
Could not find a compatible version of ildasm to run on assembly C:\xxx.dll This assembly was originally built with .NET Framework v4.0.30319
要混淆不同的.Net Framework版本需要在Settings，Project Properties，添加配置如下。
其中ILASM和ILDASM后面必需要加上对应版本的版本号，然后文件引用对应的版本文件即可。
ILASM_v4.0.30319
C:\Windows\Microsoft.NET\Framework\v4.0.30319\ilasm.exe
ILDASM_v4.0.30319