Question: My LaTeX document uncovers bugs in some LaTeX tools. Therefore I would like to provide the LaTeX sources to the tool author. 

My problem is that the document I am writing on has to be kept secret and is very large. Therefore I tried to create an "minimal example" demonstrating the bug. But that does not work because the bug is very difficult to reproduce and seems to depend on the combination of a number of used LaTeX features.

Is there an easy way to obfuscate / replace all my text content (including all sections headers, captions, labels, itemize items, citations, ...) with "Lorem ipsum" or similar text garbage so that I could provide an example document demonstrating the bug?

Answer: 
It isn't an error, just a warning. Nothing serious. You can ignore it safely.

With `xeCJK`, you will never use Chinese fonts for small caps shape letters. Only western fonts are used for alphabets. And for Chinese characters, there is no small capitals at all, of course.

If you do want to prevent the warnings, you can set `[SmallCapsFont=*]` option. But as a developer of `xeCJK`, I think it is redundant.

```
\documentclass{article}
\usepackage{xeCJK}
\setCJKmainfont[SmallCapsFont=*]{Adobe Song Std}

\begin{document}
\textsc{The beauty of words 文字之美}
\end{document}

```
The message doesn't mean that it can't print a character. It means that the shape "sc" (small caps) is not available and that latex is using the normal shape ("n") instead. I don't know much about cjk, but probably you don't need small caps and can simply ignore the warning.