I'm trying to set up a development environment for Dart and Flutter. When installing cocoapods, there is a conflict between several threads
dimabeglov@MacBook-Air-Dmitrij ~ % pod --versionTraceback (most recent call last): 12: from /Users/dimabeglov/.rvm/gems/ruby-2.7.2/bin/ruby_executable_hooks:22:in `<main>' 11: from /Users/dimabeglov/.rvm/gems/ruby-2.7.2/bin/ruby_executable_hooks:22:in `eval' 10: from /Users/dimabeglov/.rvm/gems/ruby-2.7.2/bin/pod:23:in `<main>' 9: from /Users/dimabeglov/.rvm/rubies/ruby-2.7.2/lib/ruby/site_ruby/2.7.0/rubygems.rb:304:in `activate_bin_path' 8: from /Users/dimabeglov/.rvm/rubies/ruby-2.7.2/lib/ruby/site_ruby/2.7.0/rubygems.rb:304:in `synchronize' 7: from /Users/dimabeglov/.rvm/rubies/ruby-2.7.2/lib/ruby/site_ruby/2.7.0/rubygems.rb:306:in `block in activate_bin_path' 6: from /Users/dimabeglov/.rvm/rubies/ruby-2.7.2/lib/ruby/site_ruby/2.7.0/rubygems.rb:243:in `finish_resolve' 5: from /Users/dimabeglov/.rvm/rubies/ruby-2.7.2/lib/ruby/site_ruby/2.7.0/rubygems/request_set.rb:408:in `resolve_current' 4: from /Users/dimabeglov/.rvm/rubies/ruby-2.7.2/lib/ruby/site_ruby/2.7.0/rubygems/request_set.rb:408:in `new' 3: from /Users/dimabeglov/.rvm/rubies/ruby-2.7.2/lib/ruby/site_ruby/2.7.0/rubygems/resolver/set.rb:24:in `initialize' 2: from /Users/dimabeglov/.rvm/rubies/ruby-2.7.2/lib/ruby/site_ruby/2.7.0/rubygems/core_ext/kernel_require.rb:42:in `require' 1: from /Users/dimabeglov/.rvm/rubies/ruby-2.7.2/lib/ruby/site_ruby/2.7.0/rubygems/core_ext/kernel_gem.rb:67:in `gem'/Users/dimabeglov/.rvm/rubies/ruby-2.7.2/lib/ruby/site_ruby/2.7.0/rubygems/core_ext/kernel_gem.rb:67:in `synchronize': deadlock; recursive locking (ThreadError)Check out Flutter doctor -v