Error opening form: collection was modified; enumeration operation may not execute

Issues related to label design (working with databases, data processing, RFID encoding etc.) and printing (from NiceLabel Express, NiceLabel Pro, NiceForm and NicePrint)

Moderators: Georges, milos, NiceLabel Support Team

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Boost
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Posts: 5
Joined: Wed Mar 06, 2019 4:11 pm

Error opening form: collection was modified; enumeration operation may not execute

Post by Boost » Thu Jun 11, 2020 4:33 pm

Sometimes when I open form with a button on the main form i got the following error:

Collection was modified; enumeration operation may not execute

This problem does'nt happend all the time, but occasionally.
Any of you an idea what could be the problem?

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Kyleodonnell
NiceLabel Support
NiceLabel Support
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Joined: Mon Aug 28, 2017 3:07 pm

Re: Error opening form: collection was modified; enumeration operation may not execute

Post by Kyleodonnell » Mon Jun 15, 2020 4:04 pm

Boost,

We recommend updating to the latest build of your NiceLabel software as that was a bug in previous versions of 2017

Boost
Newcomer
Posts: 5
Joined: Wed Mar 06, 2019 4:11 pm

Re: Error opening form: collection was modified; enumeration operation may not execute

Post by Boost » Tue Jun 16, 2020 3:55 pm

I'm running Nicelabel Print 2019 Build 3753 at that machine. I will update to the latest version to see if this solve the problem

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