Mac OS 10.15.7

ABCD-MBP:~ abcd$ which ruby
/usr/local/opt/ruby/bin/ruby

ABCD-MBP:~ abcd$ ruby -v
ruby 3.0.2p107 (2021-07-07 revision 0db68f0233) [x86_64-darwin19]

吊舱设置

Traceback (most recent call last):
    3: from /usr/local/bin/pod:22:in `<main>'
    2: from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_gem.rb:65:in `gem'
    1: from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/dependency.rb:323:in `to_spec'
/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/dependency.rb:311:in `to_specs': Could not find 'cocoapods' (>= 0.a) among 48 total gem(s) (Gem::MissingSpecError)
Checked in 'GEM_PATH=/Users/abcd/.gem/ruby/2.6.0:/Library/Ruby/Gems/2.6.0:/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/gems/2.6.0', execute `gem env` for more information

我不明白为什么这里会提到ruby的旧版本？
使用xcode>pod安装失败，因为ruby的旧版本也被引用。

Traceback (most recent call last):
        3: from /usr/local/bin/pod:22:in `<main>'
        2: from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_gem.rb:65:in `gem'
        1: from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/dependency.rb:323:in `to_spec'
/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/dependency.rb:311:in `to_specs': Could not find 'cocoapods' (>= 0.a) among 48 total gem(s) (Gem::MissingSpecError)
Checked in 'GEM_PATH=/Users/abcd/.gem/ruby/2.6.0:/Library/Ruby/Gems/2.6.0:/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/gems/2.6.0', execute `gem env` for more information

我尝试了在中提出的不同解决方案，但无法修复此问题
卸载所有gems并重新安装
卸载pod并重新安装