Thread:Extension talk:Score/Unable to compile LilyPond input file

Hi, when I test the example  , got this error:

Unable to compile LilyPond input file:

Processing `.../file.ly' Parsing... Interpreting music... Preprocessing graphical objects... Interpreting music... MIDI output to `file.midi'... Finding the ideal number of pages... Fitting music on 1 page... Drawing systems... Layout output to `file.ps'... Converting to PNG...Fontmap entry for Fontmap.local ends prematurely! Giving up.

fatal error: GS exited with status: 256

exited with status: 1

I can't solve it. Could you give me some help?

My wiki need to use this great extension.