I am writing a document using LaTeX which must contain both graphs and tables. For the graphs I have been using pgfplots and this has worked brilliantly. Now I needed to insert a few tables and was trying to do so using pgfplotstable, however, the moment I add \usepackage{pgfplotstable} to the document I am getting the following error:

"! Package pgfplots Error: This style is supposed to be constant.."

Does anyone have any idea why I am getting this error and what I can do to fix it?

\graphicspath{ {images/} } 
  • Welcome. Can you post your full preamble? Something is renaming the line legend I think.
    – percusse
    Commented Jul 28, 2015 at 11:21
  • you mean this: \documentclass[10pt,a4paper]{report} \usepackage{amsmath} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{graphicx} \usepackage{color} \graphicspath{ {images/} } \usepackage{Pgfplots} \usepackage[backend=bibtex]{biblatex} \usepackage{pgfplotstable} \usepackage{booktabs} \bibliography{Biblog.bib} \begin{document}
    – Falo
    Commented Jul 28, 2015 at 11:29
  • Yes. Thanks. You need to write \usepackage{pgfplots} without the capitalized P
    – percusse
    Commented Jul 28, 2015 at 11:34
  • Seems Like that was the whole problem. Thanks a lot
    – Falo
    Commented Jul 28, 2015 at 11:43

1 Answer 1


As percusse said in the comment above, The issue was that I had \usepackage{Pgfplots} rather then \usepackage{pgfplots}.

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