There's very little to say, tried to download different versions recently and always get the same error after an hour or so... š
jm$ xcversion install '11.1'
-------------------------------------------------------------------------------------
Please provide your Apple Developer Program account credentials
The login information you enter will be stored in your macOS Keychain
You can also pass the password using the `FASTLANE_PASSWORD` environment variable
See more information about it on GitHub: https://github.com/fastlane/fastlane/tree/master/credentials_manager
-------------------------------------------------------------------------------------
Username: myemail@gmail.com
Available session is not valid any more. Continuing with normal login.
100 325 100 325 0 0 952 0 --:--:-- --:--:-- --:--:-- 953
100 305 100 305 0 0 478 0 --:--:-- --:--:-- --:--:-- 297k
100 305 100 305 0 0 478 0 --:--:-- --:--:-- --:--:-- 297k
%/usr/local/lib/ruby/gems/2.4.0/gems/xcode-install-2.4.4/lib/xcode/install.rb:98:in `block in fetch': undefined method `length' for nil:NilClass (NoMethodError)
from /usr/local/lib/ruby/gems/2.4.0/gems/xcode-install-2.4.4/lib/xcode/install.rb:77:in `times'
from /usr/local/lib/ruby/gems/2.4.0/gems/xcode-install-2.4.4/lib/xcode/install.rb:77:in `fetch'
from /usr/local/lib/ruby/gems/2.4.0/gems/xcode-install-2.4.4/lib/xcode/install.rb:140:in `download'
from /usr/local/lib/ruby/gems/2.4.0/gems/xcode-install-2.4.4/lib/xcode/install.rb:371:in `get_dmg'
from /usr/local/lib/ruby/gems/2.4.0/gems/xcode-install-2.4.4/lib/xcode/install.rb:276:in `install_version'
from /usr/local/lib/ruby/gems/2.4.0/gems/xcode-install-2.4.4/lib/xcode/install/install.rb:49:in `run'
from /usr/local/lib/ruby/gems/2.4.0/gems/claide-1.0.2/lib/claide/command.rb:334:in `run'
from /usr/local/lib/ruby/gems/2.4.0/gems/xcode-install-2.4.4/bin/xcversion:12:in `<top (required)>'
from /usr/local/bin/xcversion:23:in `load'
from /usr/local/bin/xcversion:23:in `<main>'
There's very little to say, tried to download different versions recently and always get the same error after an hour or so... š