HydraCARDs | <p>Revit could not complete the external command Object Reference not Valid</p>

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Revit Based HydraCAD (Ribbon/Toolbar/Location)

Button: Spacing and Layout Function: Pick ... Error Type: Command Failure for External Command

Description:

Revit could not complete the external command Object Reference not Valid

Cause:

1. insert pipes is not checked and inserting hosted sprinklers.

Solution:

1. hosted heads do not work with the sprinkler spacing and layout tool. Must switch to an unhosted head. JB 2/19/19

Updated: Sept. 16, 2022, 5:42 a.m. Created: Feb. 19, 2019, midnight