Collection was modified; enumeration operation may not execute.

asked 14 Oct, 09:22

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ChrisG
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accept rate: 67%


This error typically happens when you are updating a list who's items (1 or more) have be updated. Look for the following:

You are passing a List as Input/Output, you have updated 1 or more items in the List (in the called Behavior) and then setting the List when it comes back in the Outputs section of the Run Behavior shape.

Generally Lists do not have to use Input/Output setting in a Behavior.

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answered 14 Oct, 09:28

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ChrisG
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accept rate: 67%

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Asked: 14 Oct, 09:22

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Last updated: 14 Oct, 09:28

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