Error when running beets

I see the following error message when running beets, what do you think maybe the issue here?

Thanks Henry

henry@nuc:~/.config/beets$ beet version
Traceback (most recent call last):
File “/home/henry/.local/bin/beet”, line 8, in
sys.exit(main())
File “/home/henry/.local/lib/python3.8/site-packages/beets/ui/init.py”, line 1
266, in main
_raw_main(args)
File “/home/henry/.local/lib/python3.8/site-packages/beets/ui/init.py”, line 1
249, in _raw_main
subcommands, plugins, lib = _setup(options, lib)
File “/home/henry/.local/lib/python3.8/site-packages/beets/ui/init.py”, line 1
144, in _setup
lib = _open_library(config)
File “/home/henry/.local/lib/python3.8/site-packages/beets/ui/init.py”, line 1
201, in _open_library
get_path_formats(),
File “/home/henry/.local/lib/python3.8/site-packages/beets/ui/init.py”, line 6
19, in get_path_formats
path_formats.append((query, template(view.as_str())))
File “/home/henry/.local/lib/python3.8/site-packages/beets/util/functemplate.py”,
line 571, in template
return Template(fmt)
File “/home/henry/.local/lib/python3.8/site-packages/beets/util/functemplate.py”,
line 581, in init
self.compiled = self.translate()
File “/home/henry/.local/lib/python3.8/site-packages/beets/util/functemplate.py”,
line 614, in translate
func = compile_func(
File “/home/henry/.local/lib/python3.8/site-packages/beets/util/functemplate.py”,
line 155, in compile_func
prog = compile(mod, ‘’, ‘exec’)
ValueError: Name node can’t be used with ‘None’ constant

Hi! This has been fixed on master. You can try running the latest source!

Thanks Adrian. I tried running an upgrade but I had the same results. How do I run the latest source?

That’s in the FAQ!

That’s awesome. Back in business, thanks so much Adrian.