一个关于引用的问题
程序编译过程中出现这样一个警告：the primary reference "system.core.version=3.5.0.0,,cculture = neutral,publick token = ....",which is a framework assembly,could nmot be resolved in the current target framework,.netFramework, version = v4.0. to resolve this problem,either remove the reference or target your application to a framwork version which contains "system.core,version = 3.5.0.0,culture= .."

这个问题要怎么解决？十万火急，希望高手帮解答一下！

[解决办法]
你查找一下System.Core引用，是否将“特定版本”设为true了，4.0的System.Core.dll是兼容3.5版本的
[解决办法]