# Code Block List - Not Working

**URL:** <https://forum.dynamobim.com/t/code-block-list-not-working/2845>\
**Category:** Packages\
**Created:** [January 6, 2016, 4:46am UTC](https://forum.dynamobim.com/t/code-block-list-not-working/2845 "2016-01-06T04:46:18Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Damo3](https://avatars.discourse-cdn.com/v4/letter/d/958977/32.png) [@Damo3](https://forum.dynamobim.com/u/Damo3)\
**Post date:** [January 6, 2016, 4:46am UTC](https://forum.dynamobim.com/t/code-block-list-not-working/2845/1 "2016-01-06T04:46:18Z")

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~~Hi Complete newbie here, just trying to create a simple renumber script and I was hoping someone could explain a concept for me around code blocks… I know I can create a simple list by using a code block and entering the syntax for example: 0…2; If I do this in a blank script it works, if I do it in the script I am attempting (already has other nodes in it), it doesn’t work. It returns null. I haven’t connected it to anything yet, so I am just talking about the code block itself… so what is the rule I am missing that is preventing an output? Can other nodes stop this simple action?~~

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Nevermind, I turned off automatic and I didn’t realise you have to hit RUN everytime, I though that was just to run the script in Revit.