摘要：打开窗体设计器出现，类型 Universe 无法解析程序集: System.Design, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a。解决：应用程序目标框架不能为Client Profile参考：VS2010 "Type universe cannot resolve assembly" has nothing to do with relativityIf you happen to seethis error be concerned, but do not be alarmed. 阅读全文