Error message unclear-validator

hi there, im trying the validator and have a repeted issue with an entry:
Error: [row : 18] Invalid question name ‘_courts _tennisquality’. Names must begin with a letter, colon, or underscore. Other characters can include numbers, dashes, and periods.
i tried rewriting the work, addign underscore in the start etc. It continues. what may be the case?

@theo_comm any chance you may have a tip? @Kal_Lam or your team maybe?

It seems you have a BLANK inside the name (after courts).

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@eirinigal, have you validated your XLSForm through this online validator? The online validator should help you identify any syntax issues that are affecting the form deployment.

This post discussed previously should help you use the online validator.

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Many thanks fot this. Yes I have used the validator to fix syntax issues for the last week.
I wonder if you can provide guidance as to why i keep on getting the error here despite correcting and ensuring columns are named as supposed to:

Thank you!
Best wishes
Eirini

(attachments)

trial v3 -updated .xlsx (35.6 KB)

Thank you for your guidance! I hope we will be able to deploy by next week as we are looking forward to use the Kobotoolbox on the ground asap! The errors seem corrected in the validator yet the deployment still blocks me when i upload the full survey syntax. Any suggestions please? thank you!

@eirinigal, there is a typo in your choices sheet. See image below:

image

The choices sheet should be choices and not Choices. Fix this and that should solve your issue.