Cascading choices can only reference one choice list!

Good evening my boss, I’m experiencing this same error when trying to edit my form in the form builder.
Can I send you my form to verify for me? I’ve tried all I could but can’t seem to find a solution around it.

@solotheking, you could also validate your XLSForm through this online validator to fix the issue.

Your issue, however, is within the cascading select question, so it would be easy to fix this if you download your project as XLSForm and then identify the syntax issue.