HydraCARDs | This error appears immediately when trying to run Auto Stocklist, the dialog box never appears. Revit could not complete the external command... System.NullReferenceException <img src="https://hydracards-storage.s3.amazonaws.com/media/public/uploads/2022/11/28/image-20221128114234-1.png" style="height:288px; width:328px" />

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Revit Based HydraLIST (Ribbon/Toolbar/Location)

Button: Auto Stocklist Error Type: Command Failure for External Command

Description:

This error appears immediately when trying to run Auto Stocklist, the dialog box never appears.

Revit could not complete the external command... System.NullReferenceException

Cause:

The AutoList application is looking for some calc parameters that don't exist for some fittings / devices in your current system.

Solution:

Run the Setup button from the HydraCALC ribbon then attempt to run the Auto Stocklist command again, and it should work.

This issue will be fixed in a future program update so this workaround is no longer required.

If you recieved this error, and the listed solutuon doesn't fix it for you, please contact support at revitsupport@hydracad.com

Updated: Nov. 28, 2022, 11:53 a.m. Created: Nov. 28, 2022, 11:50 a.m.