images_per_class = 80
fixed_size       = tuple((500, 500))
train_path       = "dataset/train"

train_labels = os.listdir(train_path)
for training_name in train_labels:
dir = os.path.join(train_path, training_name)
current_label = training_name
   for x in range(1,images_per_class+1):
    # get the image file name
    file = dir + "/" + str(x) + ".jpg"

    # read the image and resize it to a fixed-size
    image = cv2.imread(file)
    image = cv2.resize(image, fixed_size)

当我运行这段代码时，它出现了这个错误

error: OpenCV(4.5.5) D:\a\opencv-python\opencv-python\opencv\modules\imgproc\src\resize.cpp:4052: error: (-215:Assertion failed) !ssize.empty() in function 'cv::resize'

这个警告[ WARN:0@19.045] global D:\a\opencv-python\opencv-python\opencv\modules\imgcodecs\src\loadsave.cpp (239) cv::findDecoder imread_('dataset/train\Apple/1.jpg'): can't open/read file: check file path/integrity
我没有问题安装opencv，因为我用过它之前，并与另一个代码，它functionne任何帮助，请