I am a new student. After clicking ‘’main execution‘’ button, the progress window is as the first picture, which don’t enough information, such as the second picture. At the same time, the messages window is like the third picture, having ‘.’ in the window.
My code is given from my senior, she can get the right answer in her aimms that is a elder version. However ,in my aimms4.76 I can’t get the answer.