Could not load serial devices

[skylin008]

PIO Core Call Error: "Error: Traceback (most recent call last):\r\n File "C:\Users\Administrator\.platformio\penv\lib\site-packages\platformio\main.py", line 102, in main\r\n cli() # pylint: disable=no-value-for-parameter\r\n File "C:\Users\Administrator\.platformio\penv\lib\site-packages\click\core.py", line 1130, in call\r\n return self.main(args, kwargs)\r\n File "C:\Users\Administrator\.platformio\penv\lib\site-packages\click\core.py", line 1055, in main\r\n rv = self.invoke(ctx)\r\n File "C:\Users\Administrator\.platformio\penv\lib\site-packages\platformio\cli.py", line 71, in invoke\r\n return super().invoke(ctx)\r\n File "C:\Users\Administrator\.platformio\penv\lib\site-packages\click\core.py", line 1651, in invoke\r\n cmd_name, cmd, args = self.resolve_command(ctx, args)\r\n File "C:\Users\Administrator\.platformio\penv\lib\site-packages\click\core.py", line 1698, in resolve_command\r\n cmd = self.get_command(ctx, cmd_name)\r\n File "C:\Users\Administrator\.platformio\penv\lib\site-packages\platformio\cli.py", line 80, in get_command\r\n module = importlib.import_module(commands[cmd_name])\r\n File "C:\Users\Administrator\.platformio\python3\lib\importlib\init.py", line 127, in import_module\r\n return _bootstrap._gcd_import(name[level:], package, level)\r\n File "", line 1030, in _gcd_import\r\n File "", line 1007, in _find_and_load\r\n File "", line 986, in _find_and_load_unlocked\r\n File "", line 680, in _load_unlocked\r\n File "", line 850, in exec_module\r\n File "", line 228, in _call_with_frames_removed\r\n File "C:\Users\Administrator\.platformio\penv\lib\site-packages\platformio\device\cli.py", line 18, in \r\n from platformio.device.monitor.command import device_monitor_cmd\r\n File "C:\Users\Administrator\.platformio\penv\lib\site-packages\platformio\device\monitor\command.py", line 21, in \r\n from platformio.device.finder import SerialPortFinder\r\nImportError: cannot import name 'SerialPortFinder' from 'platformio.device.finder' (C:\Users\Administrator\.platformio\penv\lib\site-packages\platformio\device\finder.py)\r\n\r\n============================================================\r\n\r\nAn unexpected error occurred. Further steps:\r\n\r\n Verify that you have the latest version of PlatformIO using\r\n pip install -U platformio command\r\n\r\n Try to find answer in FAQ Troubleshooting section\r\n https://docs.platformio.org/page/faq/index.html\r\n\r\n Report this problem to the developers\r\n https://github.com/platformio/platformio-core/issues\r\n\r\n============================================================"