Font export from Inkscape problem

Font export from Inkscape problem

Why is font-size, font-color and font-type missing in the resulting
image.pdf_tex? I use Inkscape on Ubuntu and save as pdf with PDF+LaTex
option. This message appear in the image.pdf_tex file:
\errmessage{(Inkscape) Color is used for the text in Inkscape, but the
package 'color.sty' is not loaded}%
This is also in the image.pdf_tex file:
\put(0.11060533,0.4582626){\color[rgb]{0,0,0}\makebox(0,0)[lb]{\smash{A
small black text in Liberation Sans}}}%
\put(0,0.36561993){\color[rgb]{0,0,0}\makebox(0,0)[lb]{\smash{A bigger
black text in Lib. Mono}}}%
\put(0.53732692,0.27297743){\color[rgb]{0,0,0}\makebox(0,0)[lb]{\smash{A
small red text in Liberation Sans}}}
In Inkscape, the three texts are visible as they are described.