When i use cocoapods, i got a error: `rescue in block in activate_dependencies': Could not find 'minitest' (>= 5.1) among 39 total gem(s)

~ » pod --version xxx@XXX /Library/Ruby/Site/2.6.0/rubygems/specification.rb:1401:in rescue in block in activate_dependencies': Could not find 'minitest' (>= 5.1) among 39 total gem(s) (Gem::MissingSpecError) Checked in 'GEM_PATH=/Users/XXX/.gem/ruby/2.6.0:/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/gems/2.6.0:/usr/local/Cellar/cocoapods/1.11.2_1/libexec' at: /usr/local/Cellar/cocoapods/1.11.2_1/libexec/specifications/activesupport-6.1.4.1.gemspec, execute gem envfor more information from /Library/Ruby/Site/2.6.0/rubygems/specification.rb:1398:inblock in activate_dependencies' from /Library/Ruby/Site/2.6.0/rubygems/specification.rb:1387:in each' from /Library/Ruby/Site/2.6.0/rubygems/specification.rb:1387:in activate_dependencies' from /Library/Ruby/Site/2.6.0/rubygems/specification.rb:1369:in activate' from /Library/Ruby/Site/2.6.0/rubygems/specification.rb:1405:in block in activate_dependencies' from /Library/Ruby/Site/2.6.0/rubygems/specification.rb:1387:in each' from /Library/Ruby/Site/2.6.0/rubygems/specification.rb:1387:in activate_dependencies' from /Library/Ruby/Site/2.6.0/rubygems/specification.rb:1369:in activate' from /Library/Ruby/Site/2.6.0/rubygems/specification.rb:1405:in block in activate_dependencies' from /Library/Ruby/Site/2.6.0/rubygems/specification.rb:1387:in each' from /Library/Ruby/Site/2.6.0/rubygems/specification.rb:1387:in activate_dependencies' from /Library/Ruby/Site/2.6.0/rubygems/specification.rb:1369:in activate' from /Library/Ruby/Site/2.6.0/rubygems.rb:286:in block in activate_bin_path' from /Library/Ruby/Site/2.6.0/rubygems.rb:285:in synchronize' from /Library/Ruby/Site/2.6.0/rubygems.rb:285:in activate_bin_path' from /usr/local/Cellar/cocoapods/1.11.2_1/libexec/bin/pod:23:in <main>' /Library/Ruby/Site/2.6.0/rubygems/dependency.rb:311:in to_specs': Could not find 'minitest' (>= 5.1) among 39 total gem(s) (Gem::MissingSpecError) Checked in 'GEM_PATH=/Users/XXX/.gem/ruby/2.6.0:/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/gems/2.6.0:/usr/local/Cellar/cocoapods/1.11.2_1/libexec' , execute gem env for more information from /Library/Ruby/Site/2.6.0/rubygems/specification.rb:1399:in block in activate_dependencies' from /Library/Ruby/Site/2.6.0/rubygems/specification.rb:1387:in each' from /Library/Ruby/Site/2.6.0/rubygems/specification.rb:1387:in activate_dependencies' from /Library/Ruby/Site/2.6.0/rubygems/specification.rb:1369:in activate' from /Library/Ruby/Site/2.6.0/rubygems/specification.rb:1405:in block in activate_dependencies' from /Library/Ruby/Site/2.6.0/rubygems/specification.rb:1387:in each' from /Library/Ruby/Site/2.6.0/rubygems/specification.rb:1387:in activate_dependencies' from /Library/Ruby/Site/2.6.0/rubygems/specification.rb:1369:in activate' from /Library/Ruby/Site/2.6.0/rubygems/specification.rb:1405:in block in activate_dependencies' from /Library/Ruby/Site/2.6.0/rubygems/specification.rb:1387:in each' from /Library/Ruby/Site/2.6.0/rubygems/specification.rb:1387:in activate_dependencies' from /Library/Ruby/Site/2.6.0/rubygems/specification.rb:1369:in activate' from /Library/Ruby/Site/2.6.0/rubygems.rb:286:in block in activate_bin_path' from /Library/Ruby/Site/2.6.0/rubygems.rb:285:in synchronize' from /Library/Ruby/Site/2.6.0/rubygems.rb:285:in activate_bin_path' from /usr/local/Cellar/cocoapods/1.11.2_1/libexec/bin/pod:23:in '

Somebody help me?