---
title: "Error in Arena Mobile when opening survey"
url: "https://openforis.support/questions/3916/error-in-arena-mobile-when-opening-survey"
tags: ["arena", "arena-mobile"]
status: "answered"
score: 0
answer_count: 1
asked: "2024-03-13T19:56:21"
last_activity: "2024-03-13T23:16:12"
source: "Open Foris Support - Q&A Forum"
license: "Copyright Open Foris, 2026. Some rights reserved under creative commons license."
---

# Error in Arena Mobile when opening survey

Asked by hcardwell6 on 2024-03-13

I get this error message when attempting to open a survey in Arena Mobile:
"TypeError: undefined is not an object (evaluating 't.nodeDefs[null==n?void0:n.uuid].props.layout[u].indexChildren')

This is a clone of a survey that opens fine in Arena Mobile. I appreciate any help


## Answer (score 0, by Stefano (OF) on 2024-03-13)

Link: https://openforis.support/questions/3916/error-in-arena-mobile-when-opening-survey/3917

Dear user,  
Someone from our team will send you an email to your private email address (please check the spam folder) to better understand this issue (and also to know what survey you are talking about).  
Many thanks,  
Open Foris Team