I've had a go at updating the following addon(s) to blender 2.8 and at first glance it seems to work.
I had a look, but I couldn't find a github repository to set up a pull request for.
Just checking in to see if anyone could help me with this error. This happens when I import some mesh files, but sometimes it does not occur.
Screenshot of the error. Thank you!
Full vertex group support
Automatic column alignment
Sophisticated vertex position rounding
Full preservation of the original truck file
Automatic beam sorting based on the vertex groups
All node, beam and cab options are preserved during import / export