---
title: "Error exporting data in Arena Mobile (Call to function \"ExponentFileSystem.readAsStringAsync\")"
url: "https://openforis.support/questions/4418/error-exporting-data-in-arena-mobile-call-to-function-exponentfilesystemreadasstringasync"
tags: ["arena-mobile"]
status: "answered"
score: 0
answer_count: 1
asked: "2026-02-13T09:14:08"
last_activity: "2026-02-17T09:37:56"
source: "Open Foris Support - Q&A Forum"
license: "Copyright Open Foris, 2026. Some rights reserved under creative commons license."
---

# Error exporting data in Arena Mobile (Call to function "ExponentFileSystem.readAsStringAsync")

Asked by osgarcia on 2026-02-13

Hi team,

Yesterday we had trouble uploading records from one of our surveys to the server. I've attached an image of the specific error. Any ideas?

![alt text][1]

Thanks as always!

Oscar


  [1]: https://openforis.support/upfiles/Screenshot_2026-02-13_001059_1.jpg


## Answer (score 0, by Stefano (OF) on 2026-02-17)

Link: https://openforis.support/questions/4418/error-exporting-data-in-arena-mobile-call-to-function-exponentfilesystemreadasstringasync/4419

Dear Oscar,  
This problem has been fixed with version 2.3.6.  
Please let us know if you still encounter problems uploading your data.  
Many thanks,  
Open Foris Team