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I am trying to create a bipartite graph using tikz, however, it doesn't seem to recognize the keys fsnode and ssnode on my Windows MiKTeK installation (works fine in Ubuntu).


\foreach \i in {$a$,$b$,$c$,$A$,$B$}
  \node[fsnode,on chain] (f\i) [label=left: \i] {};

Error: ! Package pgfkeys Error: I do not know the key '/tikz/ssnode' and I am going toignore it. Perhaps you misspelled it.See the pgfkeys package documentation for explanation.Type H for immediate help.... }

marked as duplicate by percusse tikz-pgf Jun 21 '16 at 8:40

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The problem was in the definition

I had this:

\begin{tikzpicture}[thick,every node/.style={draw,circle},node distance=2mm, baseline=(s$A$)]

In order for it to work you have to specify fsnode and ssnode styles as well:


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