Math & Science ⇒ \caption outside float in algorithm package

[vivek9837]

I am trying to write the following algorithm using latex

Code: Select all

\documentclass{article}
\usepackage{algorithm,algpseudocode}

\begin{document}
\begin{algorithm}
  \caption{Euclid's algorithm}\label{euclid}
  \begin{algorithmic}[1]
    \Procedure{Euclid}{$a,b$}\Comment{The gcd of $a$ and $b$}
      \State $r \gets a \bmod b$
      \While{$r \neq 0$}\Comment{We have the answer if $r$ is $0$}
        \State $a \gets b$
        \State $b \gets r$
        \State $r \gets a \bmod b$
      \EndWhile\label{euclidendwhile}
      \State \textbf{return} $b$\Comment{The gcd is $b$}
    \EndProcedure
  \end{algorithmic}
\end{algorithm}

\end{document}

but i am getting the following error

Code: Select all

./test2.tex:6:\caption outside float. \caption

Kindly help

[Johannes_B]

Welcome, the code you posted works fine. Maybe you forgot an algorithm environment in your real document.