' ' +
quoteName(from_ext + ':' + from_file) +
' ' +
quoteName(to_ext + ':' + to_file);
lyxerr[Debug::FILES]
<< "No converter defined! "
' ' +
quoteName(from_ext + ':' + from_file) +
' ' +
quoteName(to_ext + ':' + to_file);
lyxerr[Debug::FILES]
<< "No converter defined! "