HydraCARDs | <p>Unhandled Exception When clicking the 'Finish Area #' button at the completion of the AutoCALC process, a diablob box pops up; "Object reference not set to an Instance of an object" Just in time JIT Just-in-time System.NullReferenceException: CalcingNameSpace.AutoCalcForm.redButton</p>

Need to save a card for later?

Create a bookmark folder in your browser of choice (Chrome, Firefox...), and save individual cards in your bookmarks to view here later.

AutoCAD Based Calculations (Ribbon/Toolbar/Location)

Button: Start Autocalcs Function: Finish Area

Description:

Unhandled Exception When clicking the 'Finish Area #' button at the completion of the AutoCALC process, a diablob box pops up; "Object reference not set to an Instance of an object" Just in time JIT Just-in-time System.NullReferenceException: CalcingNameSpace.AutoCalcForm.redButton

Solutions:

Cause:

User didn't have any trace of the block REFPT in the drawing library. Not sure how this even happened as the user had inserted a Water Supply (fire hydrant) but no corresponding reference point. Claims it wasn't deleted and purged, says it got inserted that way (without a referecne point).

Solution:

Insert a reference point anywhere using the RP command and try the AutoCALC process again. [GAB 12/06/17]

Updated: Oct. 26, 2023, 9:21 a.m. Created: March 1, 2019, midnight