<div dir="ltr"><div><br></div><div>You do not give any clues about what your input looks like.</div><div><br></div><div>You say "Article.cls not found" the class is article.cls with a lower case a so (on a case sensitive file system)</div><div>\documentclass{Article} <br></div><div>probably won't work. (it may work in some case insensitive settings but it shouldn't be used)</div><div><br></div><div>If you have</div><div>
\documentclass{article} <br></div><div>and it isn't working, show the log you get from a file with <br></div><div><br>
</div><div>\documentclass{article} <br></div><div>\begin{document}</div><div>\end{document}</div><div><br></div><div><br></div><div><br></div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, 9 Jun 2020 at 20:39, mcai5 <<a href="mailto:pof@cybermesa.com">pof@cybermesa.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Sirs:<br>
<br>
I recently joined TUG in order to find a solution to the ‘article.cls not found' problem.<br>
<br>
Today I downloaded and installed a new copy of the complete TeX system, after deleting all traces of it yesterday.<br>
<br>
The problem still remains, as I observed when I attempted to compile a paper I am writing.<br>
<br>
Where can I get a copy of ‘article.cls’, and how should I install it so that TeXShop can find it?<br>
<br>
Respectfully submitted,<br>
<br>
Paul O. Frederickson<br>
1372 47th Street<br>
Los Alamos, NM 87544<br>
</blockquote></div>