A while back I ran across a web page that explained how to avoid this error by not using \\ but hfill or hspace. I can't remember which one or find anything else about it. It was a very simple solution and solved the problem without extra packages or anything and simply filled the remaining horizontal space. Any ideas?

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I saw that, it isn't what I'm talking about.... –  Uiy May 2 '12 at 2:56
I downvoted your question, because I would suppose a user with 40 asked questions and 800 reputation to know how to ask a question. Your question is tough to answer, but not becuase the question is complicated, but the question is not properly written. You should have provided a minimal example, maybe some image of the page output or so. –  tohecz May 2 '12 at 7:17

Although it is difficult to adequately reproduce this warning (not an error), you may be after the UK TeX FAQ entry No line here to end. Here is one such a reproduction of the warning:

\documentclass{article}
\begin{document}
\begin{description}
\item[Very long label] Some starter text \\
\\
Here is some more text.
\end{description}
\end{document}


The problem stems from the use of \\ to insert a blank line. Rather use a vertical skip (like \smallskip, \medskip or \bigskip) or leave a blank line - that would indicate a paragraph break and an associated "blank line". Alternatively, a resolution suggested is to provide an infinite stretch of space \hspace*{\fill} so that there's enough "to go around" for TeX to fill the line before breaking it.

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Thanks, that was it... Forgot to use \fill. To be clear, it is "\\\hspace*{\fill}". –  Uiy May 2 '12 at 8:31