I saw this discussion was closed. However I have the same issue so I open again.
I use IOT cloud and am able to upload the sketch in ESP32. I installed the driver CP210X. However, as my device shows "offline" so I went to web editor to upload again. Then the error message shows "Error Uploading, check if the selected board is currently available." Please see the screen shot beow. May I know how to make the selected board available?'