OpenCV(4.2.0) /Users/travis/build/skvark/opencv-python/opencv/modules/imgcodecs/src/loadsave.cpp:730: error: (-215:Assertion failed) !buf.empty() in function 'imdecode_'

• face_recognition version:
• Python version:
• Operating System:

I am trying to Process Android phone live stream using OpenCV and Python

This is my code:
import requests
import cv2
import numpy as np

url = "http://192.168.1.14:8080/shot.jpg"

while True:

img_resp = requests.get(url)
img_array = np.array(bytearray(img_resp.content), dtype=np.uint8)
img = cv2.imdecode(img_array, -1)

cv2.imshow("Wireless Attendance Recorder Cam", img)

if cv2.waitkey(1)==27:
    break

This is my error:

error Traceback (most recent call last)
in
9 img_resp = requests.get(url)
10 img_array = np.array(bytearray(img_resp.content), dtype=np.uint8)
---> 11 img = cv2.imdecode(img_array, -1)
12
13 cv2.imshow("Wireless Attendance Recorder Cam", img)

error: OpenCV(4.2.0) /Users/travis/build/skvark/opencv-python/opencv/modules/imgcodecs/src/loadsave.cpp:730: error: (-215:Assertion failed) !buf.empty() in function 'imdecode_'

Please help me!!!!

Start with the requests.get and cv2.imdecode calls shown in the issue, checking whether the Android stream response contains image data before decoding. Reproduce the request against the provided URL and determine whether the response is empty or not an image. The issue is done only when the source of the failed decode is identified and a project-relevant fix or clear reproduction is documented.