$ mikutter
/usr/lib/x86_64-linux-gnu/ruby/2.3.0/continuation.so: warning: callcc is obsolete; use Fiber instead
/usr/lib/ruby/vendor_ruby/oauth/consumer.rb:216:in `token_request': 401 Authorization Required (OAuth::Unauthorized)
[TAB]from /usr/lib/ruby/vendor_ruby/oauth/consumer.rb:136:in `get_request_token'
[TAB]from /usr/share/mikutter/core/lib/mikutwitter/connect.rb:43:in `request_oauth_token'
[TAB]from /usr/share/mikutter/core/plugin/change_account/change_account.rb:93:in `request_token'
[TAB]from /usr/share/mikutter/core/plugin/achievement/achievement.rb:54:in `method_missing'
[TAB]from /usr/share/mikutter/core/plugin/change_account/change_account.rb:194:in `block (2 levels) in <top (required)>'
[TAB]from /usr/share/mikutter/core/plugin/achievement/achievement.rb:93:in `instance_eval'
[TAB]from /usr/share/mikutter/core/plugin/achievement/achievement.rb:93:in `block (2 levels) in <top (required)>'
[TAB]from /usr/share/mikutter/core/plugin/change_account/change_account.rb:185:in `block in <top (required)>'
[TAB]from /usr/lib/ruby/vendor_ruby/pluggaloid/plugin.rb:34:in `instance_eval'
[TAB]from /usr/lib/ruby/vendor_ruby/pluggaloid/plugin.rb:34:in `create'
[TAB]from /usr/share/mikutter/core/plugin/change_account/change_account.rb:5:in `<top (required)>'