This message came up as I tried to install my font using TTF and autohinting…it’s not that big of a deal for me but it may be for others so I’ll just report it for posterity’s sake.
All the best
Jonne
Which version of FontCreator are you using?
Try reinstalling it. The file ttfautohint.exe should be installed in the \TTFAutohint\ subfolder of your Program installation folder.