<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; ">Hello. How are you.<DIV><BR class="khtml-block-placeholder"></DIV><DIV>I have a problem using \footnote{} in the chapters. I mean, when I write the following:</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><FONT class="Apple-style-span" color="#0000FF">\documentclass[12pt,letterpaper]{book}</FONT></DIV><DIV><FONT class="Apple-style-span" color="#0000FF"><BR class="khtml-block-placeholder"></FONT></DIV><DIV><FONT class="Apple-style-span" color="#0000FF">\begin{document}</FONT></DIV><DIV><FONT class="Apple-style-span" color="#0000FF"><BR class="khtml-block-placeholder"></FONT></DIV><DIV><SPAN class="Apple-style-span"><FONT class="Apple-style-span" color="#0000FF">\chapter{Hello...\protect\footnote{sometimes, used to begin a telephone conversation}}</FONT></SPAN></DIV><DIV><FONT class="Apple-style-span" color="#0000FF">\newpage</FONT></DIV><DIV><FONT class="Apple-style-span" color="#0000FF">Hello everybody...</FONT></DIV><DIV><FONT class="Apple-style-span" color="#0000FF"><BR class="khtml-block-placeholder"></FONT></DIV><DIV><FONT class="Apple-style-span" color="#0000FF">\end{document}</FONT><BR><DIV> <SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><FONT class="Apple-style-span" color="#00000000"><SPAN class="Apple-style-span" style="background-color: transparent;"><BR class="Apple-interchange-newline"></SPAN></FONT><SPAN class="Apple-style-span" style="border-collapse: separate; -khtml-border-horizontal-spacing: 0px; -khtml-border-vertical-spacing: 0px; font-family: Helvetica; font-size: 12px; font-variant: normal; letter-spacing: normal; line-height: normal; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><SPAN class="Apple-style-span" style="border-collapse: separate; -khtml-border-horizontal-spacing: 0px; -khtml-border-vertical-spacing: 0px; font-family: Helvetica; font-size: 12px; font-variant: normal; letter-spacing: normal; line-height: normal; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><DIV><FONT class="Apple-style-span" face="Arial Hebrew">The header appears with the footnote number increased at one. In this case, 2. </FONT></DIV><DIV><FONT class="Apple-style-span" face="Arial Hebrew"><BR class="khtml-block-placeholder"></FONT></DIV><DIV><FONT class="Apple-style-span" face="Arial Hebrew">So, How can I solve this LaTeX error?</FONT></DIV><DIV><FONT class="Apple-style-span" face="Arial Hebrew"><BR class="khtml-block-placeholder"></FONT></DIV><DIV><FONT class="Apple-style-span" face="Arial Hebrew"><BR class="khtml-block-placeholder"></FONT></DIV><DIV><FONT class="Apple-style-span" face="Arial Hebrew">Thank you, so much.</FONT></DIV><DIV><FONT class="Apple-style-span" face="Arial Hebrew">Have a good day.</FONT></DIV><DIV><FONT class="Apple-style-span" face="Arial Hebrew"><FONT class="Apple-style-span" color="#00000000"><SPAN class="Apple-style-span" style="background-color: transparent;; font-family: Arial Hebrew; "><BR class="khtml-block-placeholder"></SPAN></FONT></FONT></DIV><DIV><FONT class="Apple-style-span" face="Arial Hebrew"><BR class="khtml-block-placeholder"></FONT></DIV><DIV><FONT class="Apple-style-span" face="Arial Hebrew"><SPAN class="Apple-style-span" style="font-family: Arial Hebrew; "><SPAN class="Apple-style-span" style="font-family: Arial Hebrew; "><SPAN class="Apple-style-span" style="font-family: Arial Hebrew; "><SPAN class="Apple-style-span" style="font-family: Arial Hebrew; "><SPAN class="Apple-style-span" style="font-family: Arial Hebrew; "><FONT class="Apple-style-span" color="#00000000"><SPAN class="Apple-style-span" style="background-color: transparent;; font-family: Arial Hebrew; "><SPAN class="Apple-style-span" style="font-family: Arial Hebrew; ">Hugo Esquivel</SPAN></SPAN></FONT></SPAN></SPAN></SPAN></SPAN></SPAN></FONT></DIV><DIV><FONT class="Apple-style-span" face="Arial Hebrew"><SPAN class="Apple-style-span" style="font-family: Arial Hebrew; "><SPAN class="Apple-style-span" style="font-family: Arial Hebrew; "><SPAN class="Apple-style-span" style="font-family: Arial Hebrew; "><SPAN class="Apple-style-span" style="font-family: Arial Hebrew; "><SPAN class="Apple-style-span" style="font-family: Arial Hebrew; "><FONT class="Apple-style-span" color="#00000000"><SPAN class="Apple-style-span" style="background-color: transparent;; font-family: Arial Hebrew; "><SPAN class="Apple-style-span" style="font-family: Arial Hebrew; ">Student of Civil Engineering</SPAN></SPAN></FONT></SPAN></SPAN></SPAN></SPAN></SPAN></FONT></DIV><DIV><FONT class="Apple-style-span" face="Arial Hebrew"><SPAN class="Apple-style-span" style="font-family: Arial Hebrew; "><SPAN class="Apple-style-span" style="font-family: Arial Hebrew; "><SPAN class="Apple-style-span" style="font-family: Arial Hebrew; "><SPAN class="Apple-style-span" style="font-family: Arial Hebrew; "><SPAN class="Apple-style-span" style="font-family: Arial Hebrew; "><FONT class="Apple-style-span" color="#00000000"><SPAN class="Apple-style-span" style="background-color: transparent;; font-family: Arial Hebrew; "><SPAN class="Apple-style-span" style="font-family: Arial Hebrew; ">From: Universidad del Norte</SPAN></SPAN></FONT></SPAN></SPAN></SPAN></SPAN></SPAN></FONT></DIV><DIV><FONT class="Apple-style-span" face="Arial Hebrew"><SPAN class="Apple-style-span" style="font-family: Arial Hebrew; "><SPAN class="Apple-style-span" style="font-family: Arial Hebrew; "><SPAN class="Apple-style-span" style="font-family: Arial Hebrew; "><SPAN class="Apple-style-span" style="font-family: Arial Hebrew; "><SPAN class="Apple-style-span" style="font-family: Arial Hebrew; "><FONT class="Apple-style-span" color="#00000000"><SPAN class="Apple-style-span" style="background-color: transparent;; font-family: Arial Hebrew; "><SPAN class="Apple-style-span" style="font-family: Arial Hebrew; ">Colombia, Barranquilla</SPAN></SPAN></FONT></SPAN></SPAN></SPAN></SPAN></SPAN></FONT></DIV><DIV><FONT class="Apple-style-span" face="Baghdad"><SPAN class="Apple-style-span" style="font-family: Baghdad; "><SPAN class="Apple-style-span" style="font-family: Baghdad; "><SPAN class="Apple-style-span" style="font-family: Baghdad; "><SPAN class="Apple-style-span" style="font-family: Baghdad; "><SPAN class="Apple-style-span" style="font-family: Baghdad; "><FONT class="Apple-style-span" color="#00000000"><SPAN class="Apple-style-span" style="background-color: transparent;; font-family: Baghdad; "><SPAN class="Apple-style-span" style="font-family: Baghdad; "><A href="mailto:hresquivelo10@gmail.com">hresquivelo10@gmail.com</A></SPAN></SPAN></FONT></SPAN></SPAN></SPAN></SPAN></SPAN></FONT></DIV></SPAN></SPAN><BR class="Apple-interchange-newline"></SPAN></SPAN></SPAN> </DIV><BR></DIV></BODY></HTML>