I am trying to export a networkx graph into a format that vosviewer can read. When I wrote my graph to gml and pajek via nx.write_gml(G, path) and nx.write_pajek(G, path), vosviewer did not accept the output files.

With the pajek file, I got the folowing error : "error while reading Pajek network file (line 509) the index of a vertex must be between 1 and 709"

And with the gml file, I got this error: "error whie reading GML file (line 77) for each [there must be a corresponding]"


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