Error with \footnote{\bibentry{foo}} when using beamer

Question

I am making a beamer presentation and having the following problem:

When I use \footnote{\bibentry{foo}} to cite an article, I get the following error message:

Undefined Control Sequence}

And the footnote does not appear right. I have used this in other beamer presentation before, though I'm not sure what is going wrong in my case. I typed

\usepackage{bibentry}
\nobibliography*

before my title slide (which is before \begin{document}) and I also typed

\begin{frame}
\titlepage
\bibliographystyle{amsplain}
\nobibliography{diss_def}
\end{frame}

Immediately after \begin{document}

Any suggestions on what could be wrong?? Or other suggestions for citing in beamer?

Answer 1

What I did to resolve this issue was to simply copy and paste the entry from the .bbl file into \footnote{}