STEPS to Run Program -->Extract the zip file -->Go to the directory where containing the make file and the source files then write in the terminal ./ProjectOSGui_1stEdit and provide it with an argv[1] ex: ./ProjectOSGui_1stEdit /home Note: the folder containing the make file is "build-ProjectOSGui_1stEdit-Desktop_Qt_5_12_2_GCC_64bit-Release" ************ OR -->Open in QT Creater and Remove comment from line 105 (which has the code argv[1]="/home";) Note: you can change the directory to any path you want then run from inside the program