FormLogicError: Could not evaluate: x, message: Failed to execute 'evaluate' on 'XPathEvaluator': The string 'x’ is not a valid

User Support Form Building
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Hi there,

I’ve been using this xls and adding to it over the last weeks and suddenly I get this error when I upload the form: FormLogicError: Could not evaluate: x, message: Failed to execute 'evaluate' on 'XPathEvaluator': The string 'x’ is not a valid XPath expression.
I put the xls into an online form validator and it says there’s an error with row 14 and that I need to start with a letter…but no matter how I change row 14 it gives me the same error.

Error: [row : 14] Invalid question name ‘Pollen_load_nemesia caerulea’. Names must begin with a letter, colon, or underscore. Other characters can include numbers, dashes, and periods.
I’ve attached my xls file below.

Any assistance would be greatly appreciated!!

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Hi @bs_mis, Welcome to community!

Is it possible to share the xls form with us?

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@bs_mis, seems like you will need to check out row 14 of your survey sheet to see the variable name you have used there. It seems like you used a variable name that is not supported by the system.

If you are not able to fix the issue, share your XLSForm as advised by @osmanburcu! The community should be able to help you troubleshoot your issue.