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<p>Hi there,<br>
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<p>I have upgraded my MaxBook Pro ( from 2013 that ran on Yosemite previously) to High Serra yesterday. It is running, (but even slower than before it seems).<br>
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<p>When I want to compile with <span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);">X</span><span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);">eLaTeX</span>
 under TexShop 3.97,  I get an error, saying:<br>
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<p><span style="font-family: Monaco; font-size: 10px;">xelatex: Command not found.</span><span style="font-family: Monaco; font-size: 10px;">​</span></p>
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<p><span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);">Same problem when I want to compile single chapters of my book with bibTex, I get: Error: the program bibtex does not exist.</span></p>
<p><span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);"><br>
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<p><span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);">Do I need to reinstall everything?</span></p>
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<p><span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);">Thanks for your insights,</span></p>
<p><span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);">Andrea</span></p>
<p><span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);"><br>
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<p><span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);"> </span>​<br>
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Andrea Bréard
<div>https://www.researchgate.net/profile/Andrea_Breard</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> MacOSX-TeX <macosx-tex-bounces@email.esm.psu.edu> on behalf of Gary L. Gray <euler@psu.edu><br>
<b>Sent:</b> Thursday, February 1, 2018 3:20 AM<br>
<b>To:</b> TeX on Mac OS X Mailing List<br>
<b>Subject:</b> Re: [OS X TeX] Upgrade to High Sierra</font>
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<blockquote type="cite" class="">
<div class="">On Jan 31, 2018, at 1:06 PM, Don Green Dragon <<a href="mailto:fergdc@Shaw.ca" class="">fergdc@Shaw.ca</a>> wrote:</div>
<br class="Apple-interchange-newline">
<div class=""><span class="" style="font-family:MesloLGMDZ-Regular; font-size:13px; font-style:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; float:none; display:inline!important">Based
 on your comments and Rob Rye's I went ahead and attempted to install High Sierra. An update window usually appears on my screen when I begin a session, but instead of showing the usual (for some time 'usual') icon for upgrading to High Sierra, the icon read
 "installed" and when I asked for <Apple/Software update...> the response was "no updates available". With <Apple/About this Mac> the response remains "version 10.9.5".</span><br class="" style="font-family:MesloLGMDZ-Regular; font-size:13px; font-style:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px">
<br class="" style="font-family:MesloLGMDZ-Regular; font-size:13px; font-style:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px">
<span class="" style="font-family:MesloLGMDZ-Regular; font-size:13px; font-style:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; float:none; display:inline!important">Stunned
 by the above, looked around in Applications and found, to my surprise, an app titled <Install macOS High Sierra>. Despite not recalling how the app got there, I opened it and clicked on Install. Nothing seemed to happen. Eventually a window appeared which
 announced that <macOS High Sierra> will be installed on "MacIntosh HD" which seemed okay, and finally a progress bar appeared, after a second or third tap on the "Install" icon. After three hours the progress bar was about 20% full. I knew the install would
 be slow because I have the slowest connection possible with my ISP.<span class="Apple-converted-space"> </span></span><br class="" style="font-family:MesloLGMDZ-Regular; font-size:13px; font-style:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px">
<br class="" style="font-family:MesloLGMDZ-Regular; font-size:13px; font-style:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px">
<span class="" style="font-family:MesloLGMDZ-Regular; font-size:13px; font-style:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; float:none; display:inline!important">However,
 it is now 40.5 hours later and the progress bar remains about 10% from full. Also, the progress bar 'appears' to NOT have advanced since yesterday at about 5:00 pm when I last checked.</span><br class="" style="font-family:MesloLGMDZ-Regular; font-size:13px; font-style:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px">
<br class="" style="font-family:MesloLGMDZ-Regular; font-size:13px; font-style:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px">
<span class="" style="font-family:MesloLGMDZ-Regular; font-size:13px; font-style:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; float:none; display:inline!important">Should
 I hit the "Cancel" button or just let the install proceed?</span><br class="" style="font-family:MesloLGMDZ-Regular; font-size:13px; font-style:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px">
<br class="" style="font-family:MesloLGMDZ-Regular; font-size:13px; font-style:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px">
<span class="" style="font-family:MesloLGMDZ-Regular; font-size:13px; font-style:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; float:none; display:inline!important">I'm
 wondering about Gary's  comment<span class="Apple-converted-space"> </span></span><br class="" style="font-family:MesloLGMDZ-Regular; font-size:13px; font-style:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px">
<br class="" style="font-family:MesloLGMDZ-Regular; font-size:13px; font-style:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px">
<span class="" style="font-family:MesloLGMDZ-Regular; font-size:13px; font-style:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; float:none; display:inline!important">"The
 App Store will not give you the option to install it if you aren’t eligible."</span><br class="" style="font-family:MesloLGMDZ-Regular; font-size:13px; font-style:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px">
<br class="" style="font-family:MesloLGMDZ-Regular; font-size:13px; font-style:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px">
<span class="" style="font-family:MesloLGMDZ-Regular; font-size:13px; font-style:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; float:none; display:inline!important">but
 I've not received an explicit message saying that I'm not eligible!!!</span><br class="" style="font-family:MesloLGMDZ-Regular; font-size:13px; font-style:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px">
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<br class="">
<div class="">I really can’t tell you what is happening from where I sit. I would call Apple’s support line at ‭(800) 800-2775‬.</div>
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<div class="">Good luck!</div>
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<div class="">Gary</div>
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