Sage002. View error with latex

Problem

I got a "Latex error" when try to use view comamnd in Sage 5.2.

I've already installed (a lot of, I'm not familar with TeX) texlive, and I can compile tex code manually.

Reason:

dvipng missing.

Sage use dvipng to ensure(maybe other purpose) the  generated dvi file -- output of latex -- is ok.

hint: use func?? to see source code of a particular function, then debug the source.

(my)Solution:

just install dvipng

sudo apt-get install dvipng