make all error 出现：undefined reference to cv::imread(std::__cxx11::basic_string

[RenzhiDaDa]

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[xiaolin1990]

这是来自QQ邮箱的假期自动回复邮件。 谢谢，您的邮件已收到，尽快给您回复。

[lovie123]

您好，邮件已收到，谢谢！

[RenzhiDaDa]

当我make all的时候出现的是undefined reference to cv::imread(std::__cxx11::basic_string。。。。。。。

查询opencv版本是2.X 不能开opencv=3!

解决办法：
查到原因是gcc编译器的版本太新了！！！不能用gcc-5.2版本的，需要降回到gcc-4.8版本的。
当gcc降级完成之后，make all就能成功了！！！