Actually, I take that back.
If you click on “Activate Plugin” immediately upon installation from the Add New Plugin area, the plugin does throw up the error
The plugin does not have a valid header.
However, if I later to to installed plugins, and then click “Activate”, then I am able to activate and use the plugin.
I am also happy to report that I was able to successfully convert a phpBB 3.0.9 forum. It’s not perfect…I need to fix a few things here or there, but it is good enough…as good as can be expected from a general-purpose automated converter.
