Qt5 + opencv invalid pointer [closed]

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Dear all, I spent the whole day to solve a weird problem. Qt5 and opencv can work independently.

when I put opencv code into the qtcreater, bugs come.

* Error in `/home/think/QtProject/build-opencv-test2-Desktop-Debug/opencv-test2': realloc(): invalid pointer: 0x00000032c5eed840 *

======= Backtrace: =========

/usr/lib64/libc.so.6[0x36b0077d9e] /usr/lib64/libc.so.6(realloc+0x290)[0x36b00845d0] /usr/lib64/libQt5Core.so.5(_ZN9QListData7reallocEi+0x1f)[0x3d24f0a3ef] /usr/lib64/libQt5Core.so.5(_ZN9QListData6appendEi+0x6e)[0x3d24f0a4ae] /usr/lib64/libQt5Core.so.5[0x3d24fdb474] /usr/lib64/libQt5Core.so.5(_Z21qRegisterResourceDataiPKhS0_S0_+0x326)[0x3d24fd7596] /usr/lib64/libQt5Core.so.5[0x3d24e7a333] /lib64/ld-linux-x86-64.so.2[0x36afc0ff2a] /lib64/ld-linux-x86-64.so.2[0x36afc1003b] /lib64/ld-linux-x86-64.so.2[0x36afc00d2a]

======= Memory map: ========

00400000-00405000 r-xp 00000000 fd:02 14286978 /home/think/QtProject/build-opencv-test2-Desktop-Debug/opencv-test2 00604000-00605000 r--p 00004000 fd:02 14286978 /home/think/QtProject/build-opencv-test2-Desktop-Debug/opencv-test2 00605000-00606000 rw-p 00005000 fd:02 14286978 /home/think/QtProject/build-opencv-test2-Desktop-Debug/opencv-test2 01610000-01652000 rw-p 00000000 00:00 0 [heap]

I thought it was the problem of finding the correct position of opencv libs, and tried to use differrent way,all of them did not work.

LIBS += pkg-config opencv --libs

LIBS += -L /usr/local/lib/libopencv_core.so \

    /usr/local/lib/libopencv_imgproc.so \

    /usr/local/lib/libopencv_highgui.so

LIBS += -L/usr/local/lib

LIBS += -lopencv_core

LIBS += -lopencv_imgproc

LIBS += -lopencv_highgui

it was caused by the Qt, conflict by different Qt version.