Error message

[Thomas Dent]

Hi, I've just converted a large file from 1.5.x to 2.0 and it seems to be
failing at one point. The log file is as follows:

*****

lilypond (GNU LilyPond) 2.0.1
Running usr...
Now processing: `jonson.ly'
Parsing...ERROR: Unbound variable: fis2

lilypond: error: LilyPond failed on input file jonson (exit status 2)
lilypond: warning: Running LilyPond failed. Rerun with --verbose for a
trace.

*****

With --verbose, I get (among other things)

*****

Backtrace:
In (/filepath)/jonson.ly:
   1: 0* [ly:export #<Music TextSpanEvent> ...

(/filepath)/jonson.ly:1:66: While evaluating arguments to ly:export in
expression (ly:export (make-span-event # START) fis2):
(/filepath)/jonson.ly:1:66: Unbound variable:fis2
lilypond: warning: `usr' failed (status 2) (ignored)

*****

Any suggestions?

Thomas Dent