I am getting this error while compiling this code: I have already tried checking the equations and looking for missing }, but without success. This is the first time I am using the beamer environment. Here is a minimum example which reproduces the error.



\begin{frame}\frametitle{Onde Gravitazionali da sistemi binari}
   \item $P_{gw}=-\frac{dE_{orb}}{dt}$
   \item $\dot{\omega}_{gw} = \frac{12}{5}\, 2^{\frac{1}{3}} \left(\frac{G M_c}{c^3}\right)^{\frac{5}{3}}\omega_{gw}^{\frac{11}{3}}$

  • 2
    The width argument for column is missing: \begin{column}{0.4\textwidth} ... Beside this: don't load local files (default.sty, your graphic) in a minimal example. – Ulrike Fischer Mar 12 '15 at 15:02
  • @UlrikeFischer There is a default.sty in TeX Live, dated 1998, but I don't recommend loading it. – egreg Mar 12 '15 at 18:46
  • @UlrikeFischer: Would you write up an answer? Adding column widths solves the problem. – Werner Sep 10 '16 at 16:08

The column environment takes an argument for the width of the column:

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