When attempting to convert an existing polyline to the Remote Area polyline, you get the following error when selecting a pline. Error: Automation Error. Key not found Command:

Area # section is blank or missing remote areas in the AutoCalc Setup dialog box. Area number is not recognized

Machine is set up to generate old-style (pre-AutoCAD 14) polylines. Flowing Heads Remote Area

Step 1a.1 - You may be missing a selected pipe type from master.dat or no pipe type has been selected for a particular system component

When attempting to setup a sprinkler head, after clicking OK in the definition window, the command prompt looks like this and no sprinkler head is inserted;

While trying to calculate a job, an error message pops up saying the following

"Error in Calc Engine"

Error in processing data of calculation;

-If this is a grid, uncheck 'Autopeak' and try again or,

-Confirm the node you set as the calculation source node exists in your input or,

- Check for incorrect values in your densities, areas or pressures

While using the 'Choose Part Number' button to open HydraHEAD Selector and retrieive its description and part number, you get the errors below;

Runtime Error 713, Application-defined or object-defined error

Sprinkler not properly configured.  Please re-select using 'Choose part'

Revit could not complete the external command... System.ArgumentException

When adding a device the below error appears.

Primary calc results are shown, and when selecting OK to continue back to the calc input screen, the two messages below are displayed, twice;

"The designated source node was not found in the list of pipes" OK

"Calculation failed for an unknown reason" OK

Process Error Hydcalc

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

Step 5a.3 "Attaching Elevation of ~ to Node ~~~~

Step 5a.3 "Calculating"

"The specified remote node does not have a k-factor. Please fix your input."

"Calculation failed for unknown reason"

After calculating system this message pops up..."The specified remote head does not have a k factor. Please fix your input" hydcalc.exe

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 attempting to create a new FSC definition, you get this error message.  Clicking OK closes the command

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.  

Drawing Setup dialog doesn't load

No error but when the HydraCAD template is selected, it goes straight to the drawing and command prompt, it doesn't ask for the user to set the scale factor

Selecting any button from the AutoCAD ribbon creates the fatal error.  Typing or using a toolbar does not create the error. 

AutoCAD Error Aborting

FATAL ERROR: Unhandled e0434352h Exception at 6C6CCF19h

Sometimes followed by;

The program is missing Tool Palettes and Ribbons.
The drawing may briefly open and then crash.

When selecting a vertical pipe/riser nipple hydrapipe, the PROPERTIES window shows "no selection" instead of "hydrapipe"

You may notice that you cannot use the 'change length' command (CL) or cannot rotate riser nipple (RRT)