[Python] imread throws [WARN] can't open/read file: check file path/integrity

what can i do?

WARN:0@0.726] global D:\a\opencv-python\opencv-python\opencv\modules\imgcodecs\src\loadsave.cpp (239) cv::findDecoder imread_('pythonProject6/arrow.jpg'): can't open/read file: check file path/integrity

Traceback (most recent call last):
File "C:\Users\PC2\PycharmProjects\pythonProject6\whatsapp try.py", line 17, in <module>
cv2.imshow("image", img)
cv2.error: OpenCV(4.6.0) D:\a\opencv-python\opencv-

python\opencv\modules\highgui\src\window.cpp:967: error: (-215:Assertion failed) size.width>0 && size.height>0 in function 'cv::imshow'


import cv2

img = cv2.imread("pythonProject6/arrow.jpg")

#print(img.shape)

cv2.imshow("image", img)
cv2.waitkey(0)

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