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-<head>
-<title>UK TeX FAQ -- question label endingroup</title>
-</head><body>
-<h3><code>\</code><code>end</code> occurred inside a group</h3>
-<p/>The actual error we observe is:
-<p/>
-<code>(\end occurred inside a group at level &#60;</code><code><em>n</em></code><code>&#62;)</code>
-<p/>
-and it tells us that something we started in the document never got
-finished before we ended the document itself. The things involved
-(&#8216;groups&#8217;) are what TeX uses for restricting the scope of things:
-you see them, for example, in the &#8220;traditional&#8221; font selection
-commands: <code>{\it stuff\/}</code> &#8212; if the closing brace is left off such a
-construct, the effect of <code>\</code><code>it</code> will last to the end of the document,
-and you&#8217;ll get the diagnostic.
-<p/>TeX itself doesn&#8217;t tell you where your problem is, but you can
-often spot it by looking at the typeset output in a previewer.
-Otherwise, you can usually find mismatched braces using an intelligent
-editor (at least <i>emacs</i> and <i>winedt</i> offer this facility).
-However, groups are not <em>only</em> created by matching
-<code>{</code> with <code>}</code>:
-other grouping commands are discussed elsewhere in these FAQs,
-and are also a potential source of unclosed group.
-<p/><code>\</code><code>begin{&lt;<i>environment</i>&gt;}</code> encloses the environment&#8217;s body
-in a group, and establishes its own diagnostic mechanism. If you end
-the document before closing some other environment, you get the
-&#8216;usual&#8217; LaTeX diagnostic
-
-<pre>
-! LaTeX Error: \begin{blah} on input line 6 ended by \end{document}.
-</pre>
-which (though it doesn&#8217;t tell you which <em>file</em> the
-<code>\</code><code>begin{blah}</code> was in) is usually enough to locate the
-immediate problem. If you press on past the LaTeX error, you get
-one or more repetitions of the &#8220;occurred inside a group&#8221; message
-before LaTeX finally exits. The <i>checkend</i> package
-recognises other unclosed <code>\</code><code>begin{blob}</code> commands, and
-generates an &#8220;ended by&#8221; error message for each one, rather than
-producing the &#8220;occurred inside a group&#8221; message, which is sometimes
-useful (if you remember to load the package).
-<p/>In the absence of such information from LaTeX, you need to use
-&#8220;traditional&#8221; binary search to find the offending group. Separate
-the preamble from the body of your file, and process each half on its
-own with the preamble; this tells you which half of the file is at
-fault. Divide again and repeat. The process needs to be conducted
-with care (it&#8217;s obviously possible to split a correctly-written group
-by chopping in the wrong place), but it will usually find the problem
-fairly quickly.
-<p/>e-TeX (and e-LaTeX &#8212; LaTeX run on e-TeX) gives you
-further diagnostics after the traditional infuriating TeX one &#8212; it
-actually keeps the information in a similar way to LaTeX:
-
-<pre>
-(\end occurred inside a group at level 3)
-
-### semi simple group (level 3) entered at line 6 (\begingroup)
-### simple group (level 2) entered at line 5 ({)
-### simple group (level 1) entered at line 4 ({)
-### bottom level
-</pre>
-The diagnostic not only tells us where the group started, but also the
-<em>way</em> it started: <code>\</code><code>begingroup</code> or <code>{</code> (which is an alias of
-<code>\</code><code>bgroup</code>, and the two are not distinguishable at the TeX-engine
-level).
-<dl>
-<dt><tt><i>checkend.sty</i></tt><dd>Distributed as part of <a href="http://mirror.ctan.org/macros/latex/contrib/bezos.zip">macros/latex/contrib/bezos</a> (or <a href="http://mirror.ctan.org/macros/latex/contrib/bezos/">browse the directory</a>); <a href="http://mirror.ctan.org/help/Catalogue/entries/checkend.html">catalogue entry</a>
-</dl>
-<p/><p>This question on the Web: <a href="http://www.tex.ac.uk/cgi-bin/texfaq2html?label=endingroup">http://www.tex.ac.uk/cgi-bin/texfaq2html?label=endingroup</a>
-</body>