Server Error 500 and None Type Object is not iterable

[VAIW2025]

Dear KT Support Team

I am experiencing the Server Error message when I try to deploy my survey form.

When I run my XLS through the online checker, it shows as “NoneType Object is not Iterable.”

I have checked the XLS and I can see the language is set correctly label::English (en), there are no empty groups and references in calculations seem to be valid.

I can’t figure out the source of the Server Error and None Type Object is Not Iterable messages. Please help!

[Kal_Lam]

Welcome back to the community, @VAIW2025! You could always validate 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.

Unable to deploy Server error 500

@okware_256, all you need to do is follow the steps outlined below: Open online validator. This screen appears as shared below: [Image 1] There press Choose File and upload your XLSForm. Once the XLSForm is uploaded there, press Submit. As soon as you press Submit, you will see something as shown below: [Image 2] Now press Preview in browser. If your XLSForm has issues, you will see errors and will not be able to open your XLSForm in a browser. But if your XLSForm doesn’t have issues, you wi…

[VAIW2025]

I have checked the online validator and this is the error I get: NoneType Object is not Iterable.”

[Xiphware]

You appear to have a group that has nothing in it Is this intentional?

[I suspect lines 10 & 11 maybe should be swapped? ]