Revit could not complete the external command... Name contains illegal characters

System flow demand exceeds the maximum rated flow...

Command Failure for External Command... The symbol is not active

Command Failure for External Command... Category of the element is not supported for element intersection filters

Command Failure for External Command... The symbol is not active

Yellow part numbers that do not list once you return to Revit

Keyboard alias "SAC"

After clicking OK in the AutoCalc Setup window and just before the process begins, you get the following error messages;

Problem updating your Hcad_env.ini file.  /n Will try to rebuild file. /r Pick OK then Restart AutoCALC

Your Hcad_env.ini file is possibly corrupted.  This calc will not continue

After running an Autolist, in HydraLIST and the LINES tab you have a listing tag ID called RM

Subscription cannot be activated at this time.

Calc loading bar stops completely at step 1a.9

When trying to change pipe types, the selection window is blank 

This error is unique to version 24.2.001.   When restarting a calcultion that previously failed, after picking the Continue button the program (Revit) totally freezes!!!!

When adding a device the below error appears.

When raising to 3D, you get the following error;

Error inserting to block table HEAD#/HH## to head dictionary

No error occurs but HydraCAD will not properly load and Hcad commands do not work.  

A quick test is to select the drop menu [File|New], select the template file 'HydraCAD Imperial Default.dwt'.  

The Drawing Setup window should appear but it does not, it loads straight into a blank drawing.

This is what you should see (press F2 to review the text window);

Instead you only see;

HCAD_ADS r4 functions Loaded.

AutoCAD menu utilities loaded.
Requires an integer between 0 and 32767.

3dFitting registry keys found

Requires an integer between 0 and 32767. 
 

When a folder sent as a ZIP file is extracted, it's likely all of the files will be blocked by Windows.  This prevents the files from functioning properly. 

You can right-click each file, select PROPERTIES then GENERAL then click the UNBLOCK checkbox, however this may be time consuming if many files are blocked.

This method will describe how to unblock many files at once.  

When using option Hang To: Bottom of Roof or Floor nothing happens, as well as no hanger lengths showing up when tagging. 

No error but the calculation process takes a very long time and is slow.

The process hangs and usually the RAM runs up to 100%.  You'll likely hear the computer's fan rev up.

I can't find the 'Sentinel Product Key' for my Gemalto entitlement.