These errors can occur when is loading a configuration file
containing a list of PostScript fonts.
If complains that it can't find an encoding file, check the
ps_folders parameter in the configuration file.
The encoding files supplied with are all stored in
the Encodings subfolder in PS-files.
does not look in the current folder for an encoding file.
Various syntax errors are possible when reading an encoding file.
The resulting message should provide you with enough information to fix
the problem.
See the comments at the start of Mac.enc for a detailed description of
the legal syntax.