DraftSight运行不了

新手求指教　谢谢　转pdf时出错
错误如下：Error:File 'fontspec.sty' not found
\setmainfont
[Mapping=tex-text]{华文楷体}^^M
*** (cannot \read from terminal in nonstop modes)
文档首选项 语言:Chinese(simplified)
编码 Unicode(utf8)
LaTeX序：\usepackage{fontspec}
\setmainfont[Mapping=tex-text]{华文楷体}
\XeTeXlinebreaklocale "zh"
\XeTeXlinebreakskip = 0pt plus 1pt
从windows复制了字体到fonts/win7目录下