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

[David Carlisle]

On 16 November 2015 at 19:59, John Wong <thjwong at gmail.com> wrote:
> 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

Are you sure you have used xetex? You would get exactly that error
from tex, pdftex or luatex.

David