![插入图片时出现奇怪的错误](https://linux22.com/image/404418/%E6%8F%92%E5%85%A5%E5%9B%BE%E7%89%87%E6%97%B6%E5%87%BA%E7%8E%B0%E5%A5%87%E6%80%AA%E7%9A%84%E9%94%99%E8%AF%AF.png)
\begin{figure}[ht]
\floatbox%
[{\capbeside\thisfloatsetup{capbesideposition={right,center},capbesidewidth=4cm}}]
{%
figure%
}%
[\FBwidth]
{%
\caption{\textbf Variation of average grain size of nanostructured NiFe2O4 with milling time. The continuous line is guide to the eye.}%
\label{1fig}%
}%
{%
\includegraphics[scale=0.3]{1fig.jpg}%
}
\end{figure}
这是我的代码。我收到奇怪的错误,提示“缺少数字,视为零”。我该如何纠正?