"Invalid Formula " Issue using Costs

[dariusduke01]

Hi All, please help!

I'm pretty sure I've written this equation wrong but I can't seem to solve it.

The error seems to derive from the "cost/member length parameter " as the equation resolves when using just a number value.

I keep getting the Error  Invalid Formula 

I'm trying to find out the cost of something per linear meter. 

Can someone help me out. Cheers

[Anonymous]

Possibly you have several typs, it happened to me that eliminating the typs works.

[barthbradley]

It's a shot in the dark, but try a neutralizer in the formula.

https://knowledge.autodesk.com/support/revit-products/troubleshooting/caas/sfdcarticles/sfdcarticles...