Bill,
I don't think this is still a problem but this error message is something I added in the 1980's. A JIN, JOUT, OR NSCRAT FILE uses file numbers 5, 6, or 55. This is not allowed. Change your NSCRAT(5) file number to 20 or 30. I don't like how your example data looks.
Here is another example of how this file should look:
2 1
'out-2' 'out-1'
'out-3' 'out-1'
2001 8 1 0 633.550 711.015
2001 8 1 1 632.090 710.980
etc...
or there are three boundaries, out-1 and out-2 are in the BC file and out-3 uses the same data as out-1. It eventually makes sense.
Robert Dickinson
DickinsonRE@CDM.COM <mailto:DickinsonRE@CDM.COM>