1: “Latex” is reported in compile! paragraph complete ended before \align was complete”，

Compile code:

\begin{align}\label{LL:01}
q_ s(o_ s(t))=(1+\phi_ s(t))o_ s(t) \\
\end{align}

\begin{align*}\label{LL:01}
q_ s(o_ s(t))=(1+\phi_ s(t))o_ s(t)
\end{align*}

Solution:

\Usepackage {amsmath}
is used in formula environment.

This example can be changed to:
– begin {equation} label {LL: 01}
– begin {aligned}

q_ s(o_ s(t))=(1+\phi_ s(t))o_ s(t) \\
\end{aligned}
\end{equation}

Appendix:

Latex Download Center: http://www.ctex.org/CTeXDownload/