The project program is experiencing widespread errors!
I don’t know what caused it. Some projects encountered this issue before, and it was basically only solved by recreating the project. Does anyone know the reason?
Everything was normal at the beginning, but after I created a new .h and .cpp file, I accidentally modified some parts midway during compilation, and then this situation occurred. I still don’t know the exact reason. How could this situation happen? Places that previously compiled without errors are now showing errors, and it’s a widespread problem!