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I have cross compiled executable file from QT 4.8.7 and i am running it on SDR ADRV9361 board (Linaro-Ubuntu). When i run the cross compiled executable file (which is cross compiled on Ubuntu 16.04) on my SDR board, i got the error message like : " symbol lookup error : ./project: undefined symbol: _ZN7QWidget8qwsEventEP8QWSEvent". I don't know why i am getting this error as I conformed tool chain version on both side, please help. I followed following forums: https://mechatronicsblog.com/cross-compile-and-deploy-qt-5-12-for-raspberry-pi/ https://forum.qt.io/topic/52546/tuto-b