Developer Rig Authorization Issue

I trying to create first extension for Twitch on my Mac OS.

How described at docs, I install Developer Rig application and go to authorization step at browser.
On authorization page at I enter my credentials and pass to verification code.
When I type verification code, Twitch (I think) trying redirect me back to Developer Rig, but do it with next browser error. What I should do?

Solution for other “lucky” guys like me:

Some pages on documentations use outdated link to *.dmg with Developer Rig.
So, you should go here and install fresh version. I think this should help

Make sure to report the pages with bad links to

So they can be fixed!