Aug. 25, 2026, 3:57 p.m.
During the HydraCAD install, you get an error saying, "InstallShield Wizard - Unable to find HKEY_CLASSES_ROOT\.DWG registry key. You may need to repair AutoCAD or reinstall it
Aug. 25, 2026, 3:57 p.m.
During the HydraCAD install, you get an error saying, "InstallShield Wizard - Unable to find HKEY_CLASSES_ROOT\.DWG registry key. You may need to repair AutoCAD or reinstall it
Aug. 25, 2026, 3:52 p.m.
1. Missing profile 2. Bad registry entry 3. User does not have Admin privileges Unable to find profile Installation Acad 2015~
Aug. 25, 2026, 10:04 a.m.
When raising to 3D, you get the error message, "Error loading the Error GUI has occurred. How ironic."
The drawing will raise to 3D, but you won't see the error dialog window.
Trying the Show Mod…
Aug. 25, 2026, 10:04 a.m.
Error occurs when using some commands.
Autodesk has just released AutoCAD 2026.1.2 - and it breaks HydraCAD. It includes a major programming change by Autodesk that will require a lot of work and a …
Aug. 25, 2026, 10:02 a.m.
Trying the DDL command gives the error;
Usage: (acad_strlsort <list of strings>)
Error bad argument type: consp nil
Aug. 25, 2026, 9:56 a.m.
When importing a Persistent Model into Revizto, none of the riser nipples are visible