Applications Systems

WPM playedback transaction showing - Index was outside the bounds of the array

This article describes the issue of WPM when played back, the error result was 'Index was outside the bounds of the array'

First published date

7/24/2020 7:55 AM

Last published date

7/24/2020 7:55 AM

Overview

Index was outside the bounds of the array is showing when transaction has played back

Product section

Web Performance Monitor

Cause

It was when the WPM query an index which was out of the size of an array. Mostly happening on the old WPM using IE as the playback engine

 

Resolution

Upgrade to at least WPM 3.0 or latest (2020.2) as of the moment so that you can use the chromium engine instead of the old IE.