오류 메세지는 아래과 같습니다.

도움 부탁드립니다. 꾸벅

This is XeTeX, Version 3.14159265-2.6-0.99992 (TeX Live 2015/W32TeX) (preloaded format=xelatex)

restricted \write18 enabled.

entering extended mode

(./sample-ucs-final.tex

LaTeX2e <2015/10/01> patch level 1

Babel <3.9m> and hyphenation patterns for 79 languages loaded.

(./kaist-ucs.cls

Document Class: kaist-ucs 2008/10/21 v0.4 Standard KAIST Thesis document class,

ko.TeX version

(c:/texlive/2015/texmf-dist/tex/latex/base/report.cls

Document Class: report 2014/09/29 v1.4h Standard LaTeX document class

(c:/texlive/2015/texmf-dist/tex/latex/base/size10.clo))

(c:/texlive/2015/texmf-dist/tex/latex/tools/indentfirst.sty)

(c:/texlive/2015/texmf-dist/tex/latex/base/ifthen.sty)

(c:/texlive/2015/texmf-dist/tex/latex/kotex-utf/dhucs.sty

! Undefined control sequence.

l.43 \ifx가가

\else

?