Clion 2017.3.3 syntax check is wrong but right on 2017.2.2
已回答

Above code is not wrong. 'traceMap' is std::multimap.
Clion 2017.2.2 do not mark red under line above code. But 2017.3.3 does.
Fix it please.
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Yoonsung, I can't reproduce the issue on my side with the following code snippet:
Please provide a standalone code sample with which the issue can be reproduced, specify which compiler you use and what error you get.