Math & Science ⇒ What does this mean?

[ghostanime2001]

! Argument of \align* has an extra }.
<inserted text>
\par
l.242 \end{align*}

[localghost]

Three concerns regarding your question.

1. The topic title is meaningless, thus absolutely inappropriate.
2. The problem description is absolutely inappropriate.
3. A single error message without the producing source is absolutely useless.

A concrete answer to your question is that at line 242 in the source of your document there is an align* environment with an extra curly brace as delimiter. So, check your code at this critical line. That's all that can be said from this poor information.


Thorsten