Can not read image in opencv

Question

I am new to opencv and I am starting to make a simple code to read and display image in gui ,I am working in qt IDE, first I wirte this block of code

#includ         


        

Answer 1

it seems that the program does not know where the image is. Try to include main.cpp as one of the libraries that the program will use. That way, the program will be able to find and open the image.