# Error #1010

**URL:** <https://forum.kirupa.com/t/error-1010/290037>\
**Category:** Uncategorized\
**Created:** [June 8, 2009, 10:48pm UTC](https://forum.kirupa.com/t/error-1010/290037 "2009-06-08T22:48:12Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![crumbles](https://avatars.discourse-cdn.com/v4/letter/c/91b2a8/32.png) [@crumbles](https://forum.kirupa.com/u/crumbles)\
**Post date:** [June 8, 2009, 10:48pm UTC](https://forum.kirupa.com/t/error-1010/290037/1 "2009-06-08T22:48:12Z")

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Hey guys,

I keep getting this error

TypeError: Error #1010: A term is undefined and has no properties.  
at MethodInfo-1792()  
at MethodInfo-1793()

for what i think is this block of code

function toggleProgram(type:String):void {  
var mc\_icon:marker\_icon=programs[type].map\_xml.loc\*;  
if (! mc\_icon.visible) {  
mc\_icon.visible=true;  
} else {  
mc\_icon.visible=false;  
}  
}

and I’m not sure how to remedy. Any help would be appreciated!