Pretty Pipes requires line type TRACKS. This line type is missing from the drawing. Unhandled Except. v50

Unhandled Exception has occurred in a component in your application

Index was out of range. Must be non-negative and less than the size of the collection.

1. Bad PRETTYPIPES.DAT file

2. corrupt xrefs

3. Irregular linetypes in the drawing.

4. Bad Hcad_Toolbox.dll file eBadLinetypName V53.04

When starting AutoCALC the v50 Fuel Gauge stops at step 1a.4 plus you get a Run-time error 6; Overflow 

Working on pipe from Node ### to Node ### with a fitting of "?" and a diameter of / pipe type of 0.5 / SCHED-40 where the pipe id = ### 

The "####" values represent handles.  It is recommended you use the FINDME tool to find the coordinates of the handles, this will help narrow down the cause of the error.

May also see a Runtime Error 5, "invalid procedure"

When performing AutoCalc, the following error is displayed.

Unhandled Exception... startIndex cannot be larger than the length of string.
(Parameter 'startIndex').

After clicking the Start AutoCALCs (SAL command) button but BEFORE the AutoCALC Setup window, you get the error; 

Unhandled exception has occurred in a component in your application. If you click Continue, the application will ignore this error and attempt to continue.

The input string '1◆' was not in a correct format.

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

Flowing Paths dialog box is empty.

When running the AutoCALC process, it hangs at step 2.4e "Re-Loading Calculated Data - AutoPeaking Data"

May also happen around steps 2.3, 2.4a, 2.4b, 2.4c, and 2.4d

When running AutoCALC, the process stops around step 2.4c and you get a Run-time error 457, "This key is already associated with an element of this collection