Cannot read property "namedValues" from undefined.

[nijianmo]

Hello, I was following https://developers.google.com/workspace/solutions/content-signup to set the script editor but then met this error:

TypeError: Cannot read property "namedValues" from undefined.
onFormSubmit

Any clue about how to resolve this?

Thanks!

[Brogers0512]

I had the same problem. Looking for a solution as well.