Too many Water Supplies! error message when using the Define Water Supply function

Command Failure for External Command... The Parameter is Read-Only

Revit could not complete the external command... Autodesk.Revit.Exceptions.InvalidOperationException

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'

Command is run, but nothing appears to happen. May get Nil message

Upon calculating a file, the error message, "Failed to launch C:\HES\Hydratec for revit\programs\calcdiagnose.exe" pops up.

Was preceeded by these messages;

Plus this;  Number of Loops -1 and or Nodes with undesignated elevations

When trying to open the dialogue box to define a Flexible Sprinkler connection, the following message box error appears. 

Could not find file; FSC-INSERTDEFLINE.txt

When running a calculation, the value for "pressure required" shows a negative value.

After calculating the system, the results show, "Your System Has a Deficit"

System is -nan(ind) psi over the Water Supply Curve

HydraCALC for Revit Setup...  Unhandled Exception

Sprinkler heads not defined in the drawing or no 3D block assigned for a sprinkler head. Going to Navis only - corrupt Persistent Model drawing? eKeyNotFound Dialog box HydraCAD

1. Heads not defined show flexdrops

Sprinkler heads not defined in the drawing or no 3D block assigned for a sprinkler head. Going to Navis only - corrupt Persistent Model drawing? eKeyNotFound Dialog box HydraCAD

May have to do with sprinkler heads not defined in the drawing Exception Occured Dialog box HydraCAD

Sprinkler heads were not properly defined with a part number within the HydraCAD drawing. Therefore, Revit used a default sprinkler head symbol which happened to be a pendent sprinkler symbol. Revit

1. the v50 drawing does not have the block vp defined

Upon starting the Checkup command for AutoCalc, the command starts but stops. The Command Prompt says; "Initializing... Checking to make sure heads are in the right layer...bad argument type: stringp nil" As a side note, the user's drawing had multiple repeat head definition boxes (blue boxes in ACC1 layer). These were cleaned up (deleted) and the heads redefined. The AUDIT command was run after the cleanup

When trying to redefine and insert a sprinkler head, you get this message in the command prompt;

Command:
H_SETSPR
Pick head insertion point. Pick any point besides endpoint to break into pipe (try NEArest osnap or TRACKING)
Command:
H_SETSPR
Error: bad argument value: non-negative: -1

When trying to insert a newly defined Flexible Sprinkler Connection, an unhandled exception dialog box appears.

When attempting to define a sprinkler head, after selecting NEW SYMBOL and choosing a sprinkler head, when your click OK to set its definitions, nothing happens and you go back to a command prompt.  The defininition window does not appear at all.  If you notice grey colored text,this is also a cue there is something wrong