VS2013 編譯錯誤 error: MSB8031

VS2010 創建的 MFC 程序，用 VS2013 打開后編譯出現錯誤： C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\V120\Microsoft.CppBuild.targets(369,5): error MSB8031: Building an MFC project for a non-Unicode character set is deprecated. You must change the project property to Unicode or download an additional library. See http://go.microsoft.com/fwlink/p/?LinkId=286820 for more information. 原因是 http://blogs.msdn.com/b/vcblog/archive/2013/07/08/mfc-support-for-mbcs-deprecated-in-visual-studio-2013.aspx 需要下載組件安裝 http://www.microsoft.com/zh-cn/download/details.aspx?id=40770