运行install_update.bat时显示无cv2模块

打开目录下的 install_update.bat 进行工具安装与配置后
弹出：

Traceback (most recent call last):
  File "D:\Windrecorder\\onboard_setting.py", line 7, in <module>
    from windrecorder import __version__, utils
  File "D:\Windrecorder\windrecorder\utils.py", line 19, in <module>
    import cv2
ModuleNotFoundError: No module named 'cv2'
请按任意键继续. . . 