Forums >> Revit Building >> Technical Support >> Invalid parameter names (sort of)

archie456

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Joined: Mon, May 17, 2010
181 Posts

Hi,

After a few headaches, I found out that you shouldn't use a hyphen symbol i.e. a '-' in a parameter name.

Revit accepts the parameter name OK, but when its used in a formula Revit attempts to evaluate it and you always get an error.

Just wondering if there is a list somewhere of symbols that shouldn't be used for this reason.

I was looking to use some brackets in the name, but am wondering if they are also likely to cause future problems.

Cheers.

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Typhoon

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Joined: Tue, May 22, 2007
5921 Posts

Here in your HELP menu: http://wikihelp.autodesk.com/Revit/enu/2013/Help/00001-Revit_He0/2760-Tools_an2760/3001-Formulas3001/3004-Valid_Fo3004

Look at the bottom of that page and you'll see : "Note: It is recommended that you do not use a dash (-) when naming parameters."

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