Error in render_graph

[fangshansh]

HI,
thank you for a great package.

I have some error in render_graph.

I followed the first chunk of the DiagrammeR tutorial?

And I got those errors in below.

render_graph(example_graph, layout = "nicely")
Error in viewer(index_html) :
'browser' must be a non-empty character string

What is the reason for this? Looking forward to your reply.

Thanks.

[olivroy]

What is your session info? I can't reproduce this with R Gui or RStudio?

The likely reason is maybe that your default browser is not set up?