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

**Trying to calculate a job which was generated from HydraCAD**, you get this error on the first attempt to calculate;

'disconnected pipe'

Inserted sprinkler is disconnected / malfunctioning & the branchline pipe is missing

After using the Spacing and Layout tool, the pipes and sprinklers are modeled but are not connected properly to each other. 

When starting the Pretty Pipes command, you get an Unhandled Exception error including 'Could not find a part of the path'

Another error may mention blockoffsets.dat

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

Hydrapipe - vertical pipe issue Switching to Edit Mode leaves HydraPipes in Hydrapipe layer. Then when trying to show system model you get an AutoCAD message box "Please Switch to Edit Mode. Then try again." Switch to Edit....

When attempting to create a 3D model, you get the error; Please switch to System Model to Annotate Drops and Sprigs plus

System.NullReferenceException: Object reference not set to an instance of an object

at HCADexports.RevitConversion.create_hydrapipes_from_db()

at HCADexports.RevitConversion.create_hydrafittings_from_db(List'1 pipes, List'1 heads)

Somehow many of the pipes got a very small numbers in its Z-Coordinate value n/a Drawing Area Autocad 2010+

When trying to raise to 3D, show model, show system model, you get the error;

Access denied to HydraPipe Utilities

and

System.NullReferenceException: Object reference not set to an instance of an object at HCADexports.RevitConversion.create_hydrapipes_from_db()

When making a 3D model, the sprinkler heads appear on the floor.

Cannot read the HydraPipe dictionary Hydrapipes dictionary needs to be overwritten solid pipes 3d modeling v50+

The lines or mains do not get the pretty pipes applied. The layer is all lower case. Lines or Mains missing

TWO SYMPTOMS:

Drawing fittings and pipe look disjointed, like that time an alien team of scientists were performing out-of-phase medical experiments on the Voyager crew.

Or, on the way into Revit, you get this error;

Error (must be addressed in order to continue)

Revit has experienced an unexpected error.  The operation has been cancelled to protect your project from corruption

Deleted element

When reporting the error, you may see this;

Hashtable head_table, Hashtable FLXpipeTable, List '1 listFtgs, flexpipes PipeTypeInfo ptInfo

Starting the Pretty Pipe process, you get this error;

Unhandled exception has occurred...  eInvalidLayer

The Show System Model process shows all pipes and fittings including riser nipples. However, Riser Nipples do not display in Realistic or Conceptual Visual Styles. HydraCAD V50

When plotting two viewports, one with center-to-center lengths, and the other with cut lenghts, the riser nipples/vertical pipes will show both, even if your layout tab looks fine.

LAYOUT TAB

PLOT PREVIEW

When viewing your Persistent Model drawing, you see the clamshells/Pacman/bracket for the riser nipples/vertial pipes