C1W1 Ungraded lab Error: Bad Request

I have got the error that says "There was an error parsing the body" .FYI, I am doing this lab using virtual env on Windows.

I appreciate your help. Thanks.

Doesn’t look like the file is being sent.
Did you use the browse button (for me, on Mac, it didn’t show at all)?
Try running the client notebook and try it that way.