[tex-live] xesearch (under xetex) has error loading (TeX Live (cygwin) user)

[John Wong]

Dear mailing list members,

I am a user of TeX Live (with cygwin under windows).

The xesearch package does not load and simply \usepackage{xesearch} will
give me the following errors.


ERROR: Undefined control sequence.

--- TeX said ---
l.91 \XeTeXinterchartoks
                        \xs at lrDel\xs at Classless={\xs at LearnLetter}
--- HELP ---
TeX encountered an unknown command name. You probably misspelled the
name. If this message occurs when a LaTeX command is being processed,
the command is probably in the wrong place---for example, the error
can be produced by an \item command that's not inside a list-making
environment. The error can also be caused by a missing \documentclass
command.

When I check the source files, the line stated is obviously not truncate
while I am not sure what is the real reason of error.

Thanks in advance.

Best,
John
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