---
title: "Why do I get the 'Basic I/O execution time exceeded' error while executing my function?"
url: https://docs.catalyst.zoho.com/en/faq/serverless/basicio-time-exceeded/
description: "A time out issue will occur if you have not properly caught an exception in your function, or if you haven't closed the context at the end of your function's …"
last_updated: 2026-11-13T05:00:22Z
service: Serverless
type: faq
---

A time out issue will occur if you have not properly caught an exception in your function, or if you haven't closed the context at the end of your function's code. This issue can also occur if you haven't installed all the necessary modules files. To resolve this issue, you must try the following:

* Ensure that your code properly catches and handles exceptions
* Check if  context.close( ) is added at the end of your function 
* Ensure that you have installed all the necessary modules files based on the stack