'Imported CSV in Gephi, but no chart displays

I'm trying to visualize a set of topics, with their sub-topics, in Gephi.

Have imported the list of topics and sub-topics into Gephi from CSV, and looking at the 'Data Laboratory', I do see those 2 columns under Source and Target.

However, when I try to visualize the data, nothing happens. On the 'Overview' page, only a blank screen appears.

Suggestions?



Solution 1:[1]

$ export LIBGL_ALWAYS_SOFTWARE=1 solved the problem for me!

Sources

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Solution Source
Solution 1 maria castaldo