Still unable to colour barplot according to groups using pgfplots

This is in relation to my previous question here:How to colour barplot according to groups in table

to which, it was suggested that I refer to another question here: Colors and legend in groupplots/barplot

Briefly, I have data that can be categorised as animal or plant origin. I want the barplot of the animal values to be red and those of plants to be green (or blue, whichever).

I tried to restructure my datatable to implement the coding style in the suggested link, but to no avail. I am continuously getting errors. I am new to LaTeX and I have referred to the manual as much as I can. Please help me solve this problem.

Here is my minimal code that gives me an error:

\documentclass{beamer} \begin{document} \begin{frame} \begin{tikzpicture} \pgfplotstableread[row sep=\\,col sep=&]{ Goat milk & Buffalo milk & Buffalo meat & Eggs & Cereals & Vegetables \\ 69.8 & 19.0 & 19.7 & 5 & 1.6 & 0.3 \\ }\coeqtable \begin{tikzpicture} \only<5->{ \begin{axis}[ xbar, % enlarge x limits=0.15, width = 5cm, %enlarge x limits=0.3, ytick=data, xmin=0, xlabel={CO\textsubscript{2~eq.}/kg\textsubscript{protein}}, xmajorgrids=true, xminorgrids=true, grid style=dashed, label style = {font=\scriptsize}, yticklabel style={xshift=0.6ex, text width=1.7cm, font=\scriptsize, align=right}, ticklabel style = {font=\scriptsize}, ] \addplot [fill=red!60, draw=red] table [x expr=\coordindex, y=Goat milk] {\coeqtable}; %Will manually enter colour for each bar \end{axis} \end{tikzpicture} \end{frame} \end{document}