Hi Ohad,

There was indeed a bug in the graph() constructor. I've filed a 
PR: https://github.com/JuliaLang/Graphs.jl/pull/83

Miles

On Saturday, April 26, 2014 12:19:41 PM UTC-4, Ohad wrote:
>
> To start playing with Julia I'm trying to import a graph from a 
> NetworkX-generated JSON to the Graphs.jl package.
>
> The full gist is here <https://gist.github.com/ohadle/11323991>, but 
> basically I have an array of ExVertex and an array of ExEdge, and try to 
> call graph(). I get the following error:
>
> julia> g = graph(new_vs, new_es, is_directed=g_dict["directed"])
> ERROR: assertion failed: edge_index(e) == num_edges(g) + 1
>  in add_edge! at /home/olevinkr/.julia/v0.3/Graphs/src/graph.jl:83
>  in graph at /home/olevinkr/.julia/v0.3/Graphs/src/graph.jl:42
>
> Looking at 
> graph()<https://github.com/JuliaLang/Graphs.jl/blob/master/src/graph.jl#L38>, 
> if I just run the first couple of lines it seems to create the graph, but 
> then it tries to add all the edges to the graph and fails.
>
> Am I using graph() incorrectly?
>
> Thanks!
>

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