CJKnumber failed

[qnach]

I bought a new computer with windows10, which I installed MikTeX2.9.
The previous LaTeX file failed to compile in this new system. The follwing is a min. example:

\documentclass{book}
\usepackage{fontspec}
\usepackage[BoldFont,SlantFont,CheckSingle=true]{xeCJK}
\usepackage{CJKnumb}
\setmainfont{Times New Roman}
\setCJKmainfont{DFT_HZ5.TTC}
\begin{document}
請見本書第\CJKnumber{\ref{coding}}章)。
\end{document}

The following is the log file:

....
....
Font) TU/TimesNewRoman(0)/m/n --> TU/TimesNewRoman(0)/b/n on
input line 7.
LaTeX Font Info: Overwriting math alphabet \mathit' in version bold'
(Font) OT1/cmr/bx/it --> TU/TimesNewRoman(0)/b/it on input lin
e 7.
LaTeX Font Info: Overwriting math alphabet \mathsf' in version bold'
(Font) OT1/cmss/bx/n --> TU/lmss/b/n on input line 7.
LaTeX Font Info: Overwriting math alphabet \mathtt' in version bold'
(Font) OT1/cmtt/m/n --> TU/lmtt/b/n on input line 7.

! Missing number, treated as zero.

\protect
l.8 隢?

It is not peculiar, because what is inside \CJKnumber is undefined. The program should popup and ask me, and I simple need to hit a return But it did not popup. The program simply break here.

However, if I remove other Chinese characters, the program become

\documentclass{book}
\usepackage{fontspec}
\usepackage[BoldFont,SlantFont,CheckSingle=true]{xeCJK}
\usepackage{CJKnumb}
\setmainfont{Times New Roman}
\setCJKmainfont{DFT_HZ5.TTC}
\begin{document}
\CJKnumber{\ref{coding}}
\end{document}
It is fine.
What is wrong with my system setup?

I am sure this issue is related to CJKnumber because if I remove \CJKnumber with only \ref{coding} left, the issue disappeared.