# Font shape undefined despite using either or both of fix-cm and lmodern

My document begins:

\RequirePackage{fix-cm}
\RequirePackage[l2tabu, orthodox]{nag}
\documentclass[oneside]{memoir}  % TODO 12pt


Nevertheless, I get errors:

LaTeX Font Info:    Font shape OMS/cmr/m/n' in size <10> not available
(Font)              Font shape OMS/cmsy/m/n' tried instead on input line 139.


How do I fix these?

Looking closely at the document, these are caused by something in the itemize environment (the bullet symbol?), the copyright symbol, and something in my bibliography.

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It's not an error. Please, add some lines that produce the warning. –  egreg Jul 2 '12 at 20:57
@egreg: updated the question. Is there a way to suppress these errors? –  Neil G Jul 2 '12 at 21:05

The warning is completely innocuous and is typically generated the first time an itemize environment is used. There are two ways to avoid it:

\usepackage[T1]{fontenc}


or

\usepackage{textcomp}


Note that fix-cm is not needed when lmodern is used as its works is made useless by later loading a completely different font family.
The choice between fix-cm and lmodern is up to your personal tastes. Computer Modern and Latin Modern fonts are very similar anyway. –  egreg Jul 2 '12 at 21:10
@NeilG: I would recommend lmodern. –  Mico Jul 2 '12 at 21:11
@NeilG: The lmodern package comes with a lot more glyphs than does cmodern (whether or not the latter is "fixed up" by loading fix-cm as well). The additional complement of glyphs is, admittedly, not important if you use mainly English and have little need for accented characters. –  Mico Jul 2 '12 at 21:15