I have two Fam Hist Project trees and the same Error Message appears exporting from either family.
Have checked the Tools tips on the Plug-in Help & Advice.
Am using FH version 6.2.7 and Export GEDCOM version: 19 Sep 2019.
Here is the Error Message:
[string "C:\ProgramData\Calico Pie\Family Historian\..."]
stack traceback:
[C]: in function 'ipairs'
[string "C:\ProgramData\Calico Pie\Family Historian\..."]
[C]: in function 'gsub'
[string "C:\ProgramData\Calico Pie\Family Historian\..."]:7196: in function 'useRules'
[string "C:\ProgramData\Calico Pie\Family Historian\..."]:8071: in function 'ExportGedcom'
[string "C:\ProgramData\Calico Pie\Family Historian\..."]:7843: in function <[string "C:\ProgramData\Calico Pie\Family Historian\..."]:7833>
(tail call): ?
[C]: in function 'MainLoop'
[string "C:\ProgramData\Calico Pie\Family Historian\..."]
[string "C:\ProgramData\Calico Pie\Family Historian\..."]:7954: in function 'GUI_MainDialogue'
[string "C:\ProgramData\Calico Pie\Family Historian\..."]:8128: in main chunk
Hope this means something to somebody.
Peter