<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div><div style="color: rgb(0, 0, 0); font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255);"><div>After updating texlive to the latest version, I found my latex templates are broken which used to work well. The package `interfaces` reports error even package itself is never changed.</div></div></div><div><div><br></div><div>Minimal example:</div><div><br></div></div><blockquote style="margin: 0 0 0 40px; border: none; padding: 0px;"><div><div>\documentclass{article}</div></div><div><div>\usepackage{interfaces-LaTeX}</div></div><div><div>\changefont{linespread=1.2}</div></div><div><div>\begin{document}</div></div><div><div>test</div></div><div><div>\end{document}</div></div></blockquote><div><div><br></div><div>Result log:</div><div><br></div></div><blockquote style="margin: 0 0 0 40px; border: none; padding: 0px;"><div><div>This is pdfTeX, Version 3.1415926-2.5-1.40.14 (TeX Live 2013) (format=latex 2014.4.10) 10 APR 2014 18:18</div></div><div><div><br></div></div><div><div>...</div></div><div><div><br></div></div><div><div>! LaTeX Error: Missing \begin{document}.</div></div><div><div><br></div></div><div><div>See the LaTeX manual or LaTeX Companion for explanation.</div></div><div><div>Type H <return> for immediate help.</div></div><div><div> ... </div></div><div><div> </div></div><div><div>l.3 \changefont{linespread=1.2}</div></div><div><div> </div></div><div><div>?</div></div></blockquote><div><div><br></div><div>Kind need some help, Thanks.</div><div><br></div><div>--</div></div><div><br></div><div>Xu Cheng</div></body></html>