a problem with convert-ly (2.1.34)

[Roland Goretzki]

Hello,

until now I used lilypond version 2.1.28 and it works fine. :)

Now I've installed successfully lilypond version 2.1.34, and there is a
problem with convert-ly:

The command

    convert-ly -e --from=2.1.28 op-9.2.ly

creates an empty file named op-9.2.ly.NEW, and the original file is
untouched.

The followind output gives information, but I cannot understand, what I
have to do.

/usr/bin/convert-ly:1943: SyntaxWarning: local name 'g' in 'subst'
shadows use of 'g' as global in nested scope 'lambda'
  def subst (m):
convert-ly (GNU LilyPond) 2.1.34
Processing `op-9.2.ly' ... Applying conversions: 2.1.29, 2.1.30, 2.1.31,
2.1.33, Traceback (most recent call last):
  File "/usr/bin/convert-ly", line 2171, in ?
    do_one_file (f)
  File "/usr/bin/convert-ly", line 2110, in do_one_file
    touched = do_conversion (infile, from_version, outfile, to_version)
  File "/usr/bin/convert-ly", line 2056, in do_conversion
    str = x[1] (str)
  File "/usr/bin/convert-ly", line 2027, in conv
    + "#(make-vector 3 '\g<list>)", str)
  File "/usr/lib/python2.1/sre.py", line 63, in sub
    return _compile(pattern, 0).sub(repl, string, count)
  File "/usr/lib/python2.1/sre.py", line 136, in _compile
    raise error, v # invalid expression
sre_constants.error: unbalanced parenthesis

Please can somebody help me?

Thanks and Best Regards           Roland