# Attribute Error in Component Custom Method

**URL:** <https://forum.inductiveautomation.com/t/attribute-error-in-component-custom-method/47712>\
**Category:** Ignition\
**Tags:** ignition81, scripting, vision\
**Created:** [June 11, 2021, 6:08pm UTC](https://forum.inductiveautomation.com/t/attribute-error-in-component-custom-method/47712 "2021-06-11T18:08:04Z")\
**Posts on this page:** 1\
**Showing post:** 14

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**Author:** ![edward.fowler](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/edward.fowler/32/24179_2.png) [@edward.fowler](https://forum.inductiveautomation.com/u/edward.fowler)\
**Post date:** [June 11, 2021, 7:17pm UTC](https://forum.inductiveautomation.com/t/attribute-error-in-component-custom-method/47712/14 "2021-06-11T19:17:10Z")

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Same as my reply to Nick…  
“Yes, more precisely a list of qualified values where each qualified value has three attributes (value, quality and timestamp) hence my suffix [0].value in the read instruction. I don’t think my script is an issue…the exact script works properly when I call it from the Project script library…just not in the component customer methods.” so it must be something else…similar to what I found in ["system" functions not available from client](http://forum.inductiveautomation.com/t/system-functions-not-available-from-client/28021) ?

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