我正在尝试在树莓派上的thonny python ide上测试我的picamera，但出现错误：
Traceback (most recent call last):
File "/home/pi/Documents/Camera_test.py",line 2,in <module>
import cv2
File "/usr/lib/python3/dist-packages/thonny/backend.py",line 305,in _custom_import
module = self._original_import(*args,**kw)
File "/home/pi/.local/lib/python3.7/site-packages/cv2/__init__.py",line 3,in <module>
from .cv2 import *
File "/usr/lib/python3/dist-packages/thonny/backend.py",**kw)
ImportError: /home/pi/.local/lib/python3.7/site-packages/cv2/cv2.cpython-37m-arm-linux-gnueabihf.so: undefined symbol: __atomic_fetch_add_8
我已经尝试过寻找可能的解决方案，但无法做到，因为我无法理解他们想对-latomic说些什么。我对此很陌生。
import numpy as np
import cv2
cap = cv2.VideoCapture(0)
cap.set(3,640) # set Width
cap.set(4,480) # set Height
while(True):
ret,frame = cap.read()
frame = cv2.flip(frame,-1) # Flip camera vertically
gray = cv2.cvtColor(frame,cv2.COLOR_BGR2GRAY)
cv2.imshow('frame',frame)
cv2.imshow('gray',gray)
k = cv2.waitKey(30) & 0xff
if k == 27: # press 'ESC' to quit
break
cap.release()
cv2.destroyAllWindows()