Looks like you truncated the error message and it doesn’t show the command-line you ran. Could you please use code blocks for stack traces so that they are easier to read since it would use fixed fonts?
I’m not sure but your problem might be related to the discussion here:
Note that in general the tutorial documentation is designed for the specific pipeline release (which is v27 in this case with v28 coming soon) so it’s not guaranteed that the tutorial will work with the current weekly that you are using.