There's no Qt version assigned to this project for platform Win32.

1、错误提示内容

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Qt Visual Studio Add-in
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The following error occured:

There‘s no Qt version assigned to this project for platform Win32. Please use the ‘change Qt version‘ feature and choose a valid Qt version for this platform.
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OK   
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2、解决方法

右键VS的解决方案，选择“Change QT Version”---》选择当前的QT版本

原文：http://www.cnblogs.com/yuygt/p/6293911.html