<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><br class="Apple-interchange-newline"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="font-family: verdana; font-size: 13px; white-space: pre-wrap; ">Dear all, </span></div><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><font class="Apple-style-span" face="verdana" size="3"><span class="Apple-style-span" style="font-size: 13px; white-space: pre-wrap;"><br></span></font></div><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="font-family: verdana; font-size: 13px; white-space: pre-wrap; ">I google this question and then some solutions did not solve my questions. <br></span><div><font class="Apple-style-span" face="verdana" size="3"><span class="Apple-style-span" style="font-size: 13px; white-space: pre-wrap;"><br></span></font></div><div><span class="Apple-style-span" style="font-family: verdana; font-size: 13px; white-space: pre-wrap; ">I'm using TexShop under a Mac O.S. X</span></div><div><font class="Apple-style-span" face="verdana" size="3"><span class="Apple-style-span" style="font-size: 13px; white-space: pre-wrap;"><br></span></font></div><div><span class="Apple-style-span" style="font-family: verdana; font-size: 13px; white-space: pre-wrap; ">The error showed in the TeXShop as below. </span></div><div><font class="Apple-style-span" face="verdana" size="3"><span class="Apple-style-span" style="font-size: 13px; white-space: pre-wrap;"><br></span></font></div><div><span class="Apple-style-span" style="font-family: verdana; font-size: 13px; white-space: pre-wrap; ">Package inputenc warning: Error: Keyboard character used is undefined </span></div><div><span class="Apple-style-span" style="font-family: verdana; font-size: 13px; white-space: pre-wrap; ">(inputenc) in inputencoding 'utf8'. : : </span></div><div><span class="Apple-style-span" style="font-family: verdana; font-size: 13px; white-space: pre-wrap; ">l.85 ... site range in the past 100 years from ^^B</span></div><div><span class="Apple-style-span" style="font-family: verdana; font-size: 13px; white-space: pre-wrap; "> 8.2 degree C in January to... </span></div><div><font class="Apple-style-span" face="verdana" size="3"><span class="Apple-style-span" style="font-size: 13px; white-space: pre-wrap;"><br></span></font></div><div><span class="Apple-style-span" style="font-family: verdana; font-size: 13px; white-space: pre-wrap; ">Thanks for your help and solution. Michael</span></div></div></div><br></body></html>