Visual Studio Setup 项目 - 程序的.net framework升级后遇到的安装错误

将一个程序从.net framework 3.5升级至4.0后，Setup项目生成的.msi安装包运行时遇到如下错误： "This assembly is built by a runtime newer than the currently loaded runtime and cannot be loaded" 修改Setup项目的属性 Version为 ".net framework 4"

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