slack-ruby-client: undefined method `new' for BigDecimal:Class, Ruby 2.7

Hello,

I’m trying to use the client in combination with fastlane, this worked fine up till today.

When I try to require the gem it immediately crashes with the following exception:

NoMethodError: [!] undefined method new’ for BigDecimal:Class`

The complete stack trace is as follows:

bundler: failed to load command: fastlane (/Users/REDACTED/.gem/ruby/2.7.0/bin/fastlane)
NoMethodError: [!] undefined method `new' for BigDecimal:Class
  /Users/REDACTED/.gem/ruby/2.7.0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/duplicable.rb:111:in `<class:BigDecimal>'
  /Users/REDACTED/.gem/ruby/2.7.0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/duplicable.rb:106:in `<top (required)>'
  /Users/REDACTED/.gem/ruby/2.7.0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object.rb:3:in `require'
  /Users/REDACTED/.gem/ruby/2.7.0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object.rb:3:in `<top (required)>'
  /Users/REDACTED/.gem/ruby/2.7.0/gems/activesupport-4.2.11.1/lib/active_support/core_ext.rb:2:in `require'
  /Users/REDACTED/.gem/ruby/2.7.0/gems/activesupport-4.2.11.1/lib/active_support/core_ext.rb:2:in `block in <top (required)>'
  /Users/REDACTED/.gem/ruby/2.7.0/gems/activesupport-4.2.11.1/lib/active_support/core_ext.rb:1:in `each'
  /Users/REDACTED/.gem/ruby/2.7.0/gems/activesupport-4.2.11.1/lib/active_support/core_ext.rb:1:in `<top (required)>'
  /Users/REDACTED/.gem/ruby/2.7.0/gems/slack-ruby-client-0.14.4/lib/slack-ruby-client.rb:39:in `require'
  /Users/REDACTED/.gem/ruby/2.7.0/gems/slack-ruby-client-0.14.4/lib/slack-ruby-client.rb:39:in `<top (required)>'
  /Users/REDACTED/.gem/ruby/2.7.0/gems/fastlane-2.146.1/fastlane/lib/fastlane/fastlane_require.rb:10:in `require'
  /Users/REDACTED/.gem/ruby/2.7.0/gems/fastlane-2.146.1/fastlane/lib/fastlane/fastlane_require.rb:10:in `install_gem_if_needed'
  /Users/REDACTED/.gem/ruby/2.7.0/gems/fastlane-2.146.1/fastlane/lib/fastlane/fast_file.rb:232:in `fastlane_require'
  Fastfile:55:in `block in parsing_binding'
  /Users/REDACTED/.gem/ruby/2.7.0/gems/fastlane-2.146.1/fastlane/lib/fastlane/runner.rb:290:in `execute_flow_block'
  /Users/REDACTED/.gem/ruby/2.7.0/gems/fastlane-2.146.1/fastlane/lib/fastlane/runner.rb:46:in `block in execute'
  /Users/REDACTED/.gem/ruby/2.7.0/gems/fastlane-2.146.1/fastlane/lib/fastlane/runner.rb:45:in `chdir'
  /Users/REDACTED/.gem/ruby/2.7.0/gems/fastlane-2.146.1/fastlane/lib/fastlane/runner.rb:45:in `execute'
  /Users/REDACTED/.gem/ruby/2.7.0/gems/fastlane-2.146.1/fastlane/lib/fastlane/lane_manager.rb:56:in `cruise_lane'
  /Users/REDACTED/.gem/ruby/2.7.0/gems/fastlane-2.146.1/fastlane/lib/fastlane/command_line_handler.rb:36:in `handle'
  /Users/REDACTED/.gem/ruby/2.7.0/gems/fastlane-2.146.1/fastlane/lib/fastlane/commands_generator.rb:108:in `block (2 levels) in run'
  /Users/REDACTED/.gem/ruby/2.7.0/gems/commander-fastlane-4.4.6/lib/commander/command.rb:178:in `call'
  /Users/REDACTED/.gem/ruby/2.7.0/gems/commander-fastlane-4.4.6/lib/commander/command.rb:153:in `run'
  /Users/REDACTED/.gem/ruby/2.7.0/gems/commander-fastlane-4.4.6/lib/commander/runner.rb:476:in `run_active_command'
  /Users/REDACTED/.gem/ruby/2.7.0/gems/fastlane-2.146.1/fastlane_core/lib/fastlane_core/ui/fastlane_runner.rb:76:in `run!'
  /Users/REDACTED/.gem/ruby/2.7.0/gems/commander-fastlane-4.4.6/lib/commander/delegates.rb:15:in `run!'
  /Users/REDACTED/.gem/ruby/2.7.0/gems/fastlane-2.146.1/fastlane/lib/fastlane/commands_generator.rb:349:in `run'
  /Users/REDACTED/.gem/ruby/2.7.0/gems/fastlane-2.146.1/fastlane/lib/fastlane/commands_generator.rb:41:in `start'
  /Users/REDACTED/.gem/ruby/2.7.0/gems/fastlane-2.146.1/fastlane/lib/fastlane/cli_tools_distributor.rb:119:in `take_off'
  /Users/REDACTED/.gem/ruby/2.7.0/gems/fastlane-2.146.1/bin/fastlane:23:in `<top (required)>'
  /Users/REDACTED/.gem/ruby/2.7.0/bin/fastlane:23:in `load'
  /Users/REDACTED/.gem/ruby/2.7.0/bin/fastlane:23:in `<top (required)>'

I’ve got no clue how to fix this, but maybe someone can help me out?

About this issue

Original URL
State: closed
Created 4 years ago
Comments: 20

Most upvoted comments

See https://github.com/slack-ruby/slack-ruby-client/issues/321#issuecomment-623441987, upgrade BigDecimal and the problem will go away. We also added 2.7 to CI.

gem 'bigdecimal', '1.4.2'

dblock on Jan 5, 2021

I was just typing a response 😄

After trying many things I resorted to reverting back to ruby 2.6+ and bigdecimal 1.4.1, this solved the issue for now and I can safely require the gem again.

I guess the culprit was ruby 2.7+ , somehow things broke and I’ve got no clue how to fix them except for reverting back.

Anyhow, thanks for responding!

geraldeersteling on May 4, 2020

This is well understood and explained in https://github.com/ruby/bigdecimal/issues/127. Update big-decimal to 2.5.5+ and the issue should go away.

dblock on May 4, 2020