使用HoughLines的OpenCV（Visual Studio C ++）：_ CrtIsValidHeapPointer（pUserData）断点错误

I am still pretty new to OpenCV and I've just recently come across the HoughLinesP function. First and foremost, my goal is to write code that will detect rectangles in a webcam. Currently, the code I have below only detect lines in general. However, I still have problems while I am debugging the program. Here is my code:I am still pretty new to OpenCV and I've just r