Error message

I pressed “compile” and I got the following error:

cmap{plat=3,script=1,lang=0}: multiple glyphs Euro euro mapped to code <20ac>

Could you plesse tell me what this message addresses? Something wrong with the “euro” glyph?

please see this

Okay so it turned out I had two euro glyphs, one called Euro and one called euro. Possibly because the font file i’m working on was originally created in FOntlab. Deleted the Euro one and everything works fine. Compile function doesn’t give an error message anymore.

Thank you!