I am having the same issue, ërror previewing my form

[Kal_Lam]

Welcome to the community, @adava! Maybe this post discussed previously should help you understand the reason behind this issue:

Error message seen: There has been a problem trying to replace ${} with the XPath to the survey element named ‘’. There are multiple survey element with this name

Thank you. The name {data} is also in your revision, then you haven’t used it in a formula and so it seems all right, but it’s not okay, because if I wanted to use it it wouldn’t be possible. I believe we now know that {data} should not be used as a formula field name I edited all 42 submissions by re-entering the datetime value in a new field with a different name. And then I redeployed the xlsx form without the {data} field anymore. I hope this post will serve others to avoid this undocum…

And this one too should be helpful:

There has been a problem trying to replace ${Champ_ouvert} with the XPath to the survey element named 'Champ_ouvert'. There is no survey element with this name

@aminata, would you mind checking out row 877 from the survey tab? It has a constraint, ${Parc_agroforestier} != ${Champ_ouvert} where the name Champ_ouvert is not available anywhere else. [image] Fix this and it should solve your issue.

Or the best option to check out this issue is by:

• downloading your XLSForm
• then validate them through this online validator