Please I am new to Kobo Collect and XLSForm. I built a scratch form and then downloaded the XLS form to constrain household family members. I need help
Welcome to the community, @hersi! Maybe this online validator should help you identify the exact problem. But this post discussed previously should also help you know what’s wrong with your syntax.
Note you generally see this error message when you reference a variable that is not (yet) defined in your form.