Complex error?

[jwshome2]

I see the following error in my log file:


An unexpected error occured in the UpdateEnvironmentalSensors() function/subroutine: [System.InvalidOperationException: Collection was modified; enumeration operation may not execute. at System.Collections.Hashtable.HashtableEnumerator.MoveNext() at HSPI_ULTRA1WIRE2.HS_SENSORS.UpdateEnvironmentalSensors()]

I have five temperature sensors on a TEMP08 box. Any idea what this problem means?

[Ultrajones]

I believe it is related to some recent changes I made. How often does the error occur?