xelatex bug

Command Line:   xelatex.exe --interaction=errorstopmode --synctex=-1 "test.tex"
Startup Folder: D:\xelatex bug

This is XeTeX, Version 3.14159265-2.6-0.99999 (MiKTeX 2.9.6630)
entering extended mode
(test.tex
LaTeX2e <2017-04-15>
Babel <3.18> and hyphenation patterns for 73 language(s) loaded.
(D:\Full_TeX\texmf\tex\latex\base\article.cls
Document Class: article 2014/09/29 v1.4h Standard LaTeX document class
(D:\Full_TeX\texmf\tex\latex\base\size10.clo))
(D:\Full_TeX\texmf\tex\latex\fontspec\fontspec.sty
(D:\Full_TeX\texmf\tex\latex\l3packages\xparse\xparse.sty
(D:\Full_TeX\texmf\tex\latex\l3kernel\expl3.sty
(D:\Full_TeX\texmf\tex\latex\l3kernel\expl3-code.tex)
(D:\Full_TeX\texmf\tex\latex\l3kernel\l3xdvipdfmx.def)))
(D:\Full_TeX\texmf\tex\latex\fontspec\fontspec-xetex.sty
(D:\Full_TeX\texmf\tex\latex\base\fontenc.sty
(D:\Full_TeX\texmf\tex\latex\base\tuenc.def))
(D:\Full_TeX\texmf\tex\latex\fontspec\fontspec.cfg)))
No file test.aux.
[1] (test.aux)
xdvipdfmx:fatal: This font using the "seac" command for accented characters...

Output file removed.
 )
Error 1 (driver return code) generating output;
file test.pdf may not be valid.
SyncTeX written on test.synctex.
Transcript written on test.log.


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 XeLaTeX Compilation Report (Pages: 0)

 Errors: 0   Warnings: 1   Bad Boxes: 0
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