undefined reference to library function in Qtcreator

[Narahara]

I develop a Qt project of Qt creator 4.4.12 in windows10. And I use a library developed by Visual Studio 2013.
When I build my project, I have an error like "undefined reference to library function".
But I don't know how to solve this problem.
I definitely set a include path and a library path in my .pro file.

.profile

LIBS += ../LIB/XXX_LIB.lib
INCLUDEPATH += $$PWD/LIB

The library is a static link library. When I built my project using Qt 5.15.2 MinGW 64-bit and Qt 5.15.2 MSVC 64-bit,
I had errors. Do you have any solutions ??

[jsulm]

@Narahara said in undefined reference to library function in Qtcreator:

And I use a library developed by Visual Studio 201

Is this library a C++ library?
If so then you have to use compiler from Visual Studio 2013 to build your app, because you can't mix binaries compiled with different compilers.