Revit Tutorial Error: Create Terrain and Building Pad

[liz.nahm1]

I am getting an error message when working with Toposolid per the instructions in the video.  I am following the instructions exactly, yet when I try to add an elevation of -500 to the right boundary I am getting an error message.  I am clearly doing something wrong or am just lacking the depth of knowledge to trouble shoot. The error message is: "Slab Shape Edit failed. The Floor or Roof or Toposolid is too thin for its given type." I am very new to Revit, but am well versed in CAD.  Any help is appreciated.

[liz.nahm1]

I did try the next sequence, but that did not work b/c the file was a 2023 version & toposolid options were changed. The videos seemed to be updated, but the transcript & files were old versions. 

[michaelsoraci]

I would like to say that the new topo features are horrible. I have been using revit since 2006 and now cannot even get a building pad (which don't exist anymore) to drafted properly.

Please fix this! 

[ginger92R8T]

When I installed 2024 a couple of months ago, these toposolid types weren't part of the install. My version had the same single toposolid as Liz. Were they just created or?