T+专属云V15.0 安装提示 NSIS ERROR 错误

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NSIS Error
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Installer integrity check has failed. Common causes include
incomplete download and damaged media. Contact the
installer's author to obtain a new copy.
More information at:
http://nsis.sf.net/NSIS_Error
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确定

从来都没有遇到这样的问题，百度之后，按照百度上面操作思路不行。在畅捷通官网找的方法也是不行。

专业问题找度娘不行啊。只能去QQ群里求助大佬了。