pod install fails with "cannot load such file -- xcodeproj"

Question

I recently updated to ruby v 2.6 After upgrading I'm facing issue installing pods with the following error

Traceback (most recent call last):
    7: from /usr/local/bin/pod:23:in `<main>'
    6: from /usr/local/bin/pod:23:in `load'
    5: from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.8.4/bin/pod:36:in `<top (required)>'
    4: from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
    3: from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
    2: from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.8.4/lib/cocoapods.rb:2:in `<top (required)>'
    1: from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require': cannot load such file -- xcodeproj (LoadError)
    8: from /usr/local/bin/pod:23:in `<main>'
    7: from /usr/local/bin/pod:23:in `load'
    6: from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.8.4/bin/pod:36:in `<top (required)>'
    5: from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
    4: from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
    3: from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.8.4/lib/cocoapods.rb:2:in `<top (required)>'
    2: from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:34:in `require'
    1: from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:130:in `rescue in require'
/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:130:in `require': cannot load such file -- xcodeproj (LoadError)

I have tried sudo gem install cocoapods but with no help.

Anyone facing similar issue and found a solution?

Answer 1

Seems like you need install gem xcodeproj, run in terminal :

gem install xcodeproj

see here