# Latex Quit: ! Undefined control sequence. l.62 \@writef [closed]

I was updating my tutor handouts for calculus and suddenly the whole thing refuses to compile. I have no idea what is wrong or why it is saying this. All I changed were some equations and I added a

\begin{aling}
text
\end{align}


This is line 62:

\let\originaleqref\eqref


I use it for refs, and it always worked until now.

\let\originaleqref\eqref \renewcommand{\eqref}{Eq.~\originaleqref}
\newcommand{\tref}[1]{Table (\ref{#1})}
\newcommand{\fref}[1]{Fig.
(\ref{#1})}


Please help me get this to work! I need to hand this out tomorrow.=/

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## closed as too localized by doncherry, Martin Schröder, Kurt, Stephen, Joseph Wright♦Nov 16 '12 at 20:02

This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

Welcome to TeX.sx! Please add a minimal (non-)working example (MWE) that illustrates your problem. It is considered a lot better to put in some code that will compile, as it makes it a lot easier for us to copy it into our text editor and work with it, and see exactly what it is you are trying to do. –  tohecz Nov 15 '12 at 19:52
I edited to mark your code, but did not change the aling to not change the meaning of the post. Is this a copy typo, or the same in your code? That would cause an error. –  Stefan Kottwitz Nov 15 '12 at 19:57

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