# Error message

**URL:** <https://forum.dynare.org/t/error-message/483>\
**Category:** Dynare help (legacy posts)\
**Created:** [8 November 2007 20:57 UTC](https://forum.dynare.org/t/error-message/483 "2007-11-08T20:57:45Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![canaya](https://forum.dynare.org/letter_avatar_proxy/v4/letter/c/b3f665/32.png) [@canaya](https://forum.dynare.org/u/canaya)\
**Post date:** [8 November 2007 20:57 UTC](https://forum.dynare.org/t/error-message/483/1 "2007-11-08T20:57:45Z")

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Hi,

I am getting the following error message:

“Reference to a cleared variable exo\_det\_nbr.”

I am starting with dynare, so I have no clue of where to search for the mistake.

does anyone have a suggestion of what might be going on ?

Thanks

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**Author:** ![bigbigben](https://forum.dynare.org/letter_avatar_proxy/v4/letter/b/eb8c5e/32.png) [@bigbigben](https://forum.dynare.org/u/bigbigben)\
**Post date:** [11 November 2007 00:00 UTC](https://forum.dynare.org/t/error-message/483/2 "2007-11-11T00:00:55Z")

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Maybe you didn’t specify a random shock, but you use simulation command in Dynare.

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**Author:** ![system](https://forum.dynare.org/uploads/default/original/2X/8/8c31d20077f015ac0c48df5777b4fc49531c21e8.png) [@system](https://forum.dynare.org/u/system)\
**Post date:** [20 November 2007 17:26 UTC](https://forum.dynare.org/t/error-message/483/3 "2007-11-20T17:26:02Z")

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lets say the name of your dynare file is “economy.mod”

instead of saying  
dynare economy.mod

write dynare economy.mod noclearall

abhishek.