Water supply test point not connected to a pipe. Reinsert water supply\test point

No error, but the section's background becomes blue / light blue after placing down the supply point

Could not find fitting for water supply test point can not match

Pump is in water supply but no reference point PI

When starting AutoCalc, the following error message appears: You have more than ONE Water Supply for these calculations... You have more then ONE Water Supply for these calculations... multiple source point

Revit could not complete the external command... No work plane set in current view

Command Failure for External Command....     Revit could not complete the external command.

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

After raising to 3D, you see green lines extending from (0,0,0) to points on the drawing

You can erase the green lines and continue on, this is an annoyance and inconvenience but not really a problem.

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

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

Calculation stops at Step 1a.4 - calcing total lengths

Can be accompanied with a "Runtime error 5 - invalid procedure call or argument" or "Runtime error 6 - overflow"

Pop-up immediately after selecting RTS Points

The location that your document is saved in cannot be used. Please select that folder that you would like RTS data saved to,

When I use Pretty Sprinklers, all the nodes that were attached to my sprinklers when using All Ref Points disappeared. 
When trying to get them back by re-running All Ref Points, they don't reappear.

When I use Pretty Sprinklers, all the nodes that were attached to my sprinklers when using All Ref Points disappeared. 
When trying to get them back by re-running All Ref Points, they don't reappear.

After running the AutoCALC process on a long grid system, you realize some of the gridlines in the middle didn't get picked up.

When starting the AutoCALC process, you get this error;

Could not find fitting match for Pump Only/Test Point Please check!!

You also see an Accessing Database window with a partial green progress bar.

No Operating Heads of Flows Found!!  Please check...

Error placing Reference Points or Demand Area annotation... The 3D view ownerDBViewId is not locked.

Revit could not complete the external command... Curve length is too small for Revit's tolerance

Step 1a.1 - Error box - missing Pipe Type pointing to Ref 1 & Ref 2

can also be Step 1a.4

Reviewing the results you notice a discrepancy between the k-factor of an equivalent k versus a sprinkler head using that equivalent k-factor

In the example below, EQ02 has a k-factor of 5.37.  Reference point 1 is supposed to use the k-factor of EQ02 (5.37) but in fact is using a different value (5.36).