For me the linked pull request resolves this issue and #153.

Half a year later, this project is still broken on pip.

applying the patch from @wuxxin fixed the issue. Can Solokeys please merge it and release a new version? should be 10 minutes work...
@0x0ece @conorpp @hoos97 @nickray

Just downloaded in a new computer and got this error again (I remember reading this thread before)

Manually pinning fido2 using pip3 install fido2==0.9.3 makes cli work again, but that's not ideal

I'm not a coder myself, and I had a hard time resolving this issue. Thanks for the workaround, but I'd love a full update and solution.

I'm not a coder myself, and I had a hard time resolving this issue. Thanks for the workaround, but I'd love a full update and solution.

Me too. Manually pinning fido2 using pip3 install fido2==0.9.3 makes cli working again, but I would like the latest version of the fido2 library.

Is it a secuirity flaw still to have CTAP1 class?

I'm running into this issue as well. Pinning the pip fido2 library version to 0.9.3 as suggested by johnnyasantoss worked for me, but would appreciate an official patch to the solo1-cli tool. I believe the pull request from wuxxin would do the trick.

Ping @0x0ece @conorpp @hoos97 @nickray
Please update the current solo1-cli version. Thank you.

I'm also asking to update the current solo1-cli version, manual search-and-replace in installed pip package (or fixing fido2 to an old version) is a poor experience.