Cocoapods: pod install failed: Xcodeproj doesn't recognize some attributes on Xcode 10 project

[TofPlay]

Command

/Users/me/.rvm/gems/ruby-2.4.1/bin/pod install

Report

• What did you do?

Just run pod install

• What did you expect to happen?

Install pods

• What happened instead?

Xcodeproj doesn't recognize some attributes on Xcode 10 project

Stack

   CocoaPods : 1.5.3
        Ruby : ruby 2.4.1p111 (2017-03-22 revision 58053) [x86_64-darwin17]
    RubyGems : 2.6.14
        Host : Mac OS X 10.13.6 (17G65)
       Xcode : 10.0 (10A255)
         Git : git version 2.17.1 (Apple Git-112)
Ruby lib dir : /Users/me/.rvm/rubies/ruby-2.4.1/lib
Repositories : master - https://github.com/CocoaPods/Specs.git @ 7c7b1543c95fc3a6d9787674e8ba9a2c615a7a39

Plugins

cocoapods-deintegrate  : 1.0.2
cocoapods-dependencies : 1.1.0
cocoapods-plugins      : 1.0.0
cocoapods-search       : 1.0.0
cocoapods-stats        : 1.0.0
cocoapods-trunk        : 1.3.0
cocoapods-try          : 1.1.0

Podfile

source 'https://github.com/CocoaPods/Specs.git'

use_frameworks!
inhibit_all_warnings!
platform :ios, '10.0'

target 'MyApp' do
    pod 'Fabric', '1.6.13'
    pod 'Crashlytics', '3.8.6' 
end

Error

RuntimeError - [!] Xcodeproj doesn't know about the following attributes {"inputFileListPaths"=>[], "outputFileListPaths"=>[]} for the 'PBXShellScriptBuildPhase' isa.
If this attribute was generated by Xcode please file an issue: https://github.com/CocoaPods/Xcodeproj/issues/new
/Users/me/.rvm/gems/ruby-2.4.1/gems/xcodeproj-1.5.7/lib/xcodeproj/project/object.rb:321:in `configure_with_plist'
/Users/me/.rvm/gems/ruby-2.4.1/gems/xcodeproj-1.5.7/lib/xcodeproj/project.rb:262:in `new_from_plist'
/Users/me/.rvm/gems/ruby-2.4.1/gems/xcodeproj-1.5.7/lib/xcodeproj/project/object.rb:350:in `object_with_uuid'
/Users/me/.rvm/gems/ruby-2.4.1/gems/xcodeproj-1.5.7/lib/xcodeproj/project/object.rb:300:in `block (2 levels) in configure_with_plist'
/Users/me/.rvm/gems/ruby-2.4.1/gems/xcodeproj-1.5.7/lib/xcodeproj/project/object.rb:299:in `each'
/Users/me/.rvm/gems/ruby-2.4.1/gems/xcodeproj-1.5.7/lib/xcodeproj/project/object.rb:299:in `block in configure_with_plist'
/Users/me/.rvm/gems/ruby-2.4.1/gems/xcodeproj-1.5.7/lib/xcodeproj/project/object.rb:296:in `each'
/Users/me/.rvm/gems/ruby-2.4.1/gems/xcodeproj-1.5.7/lib/xcodeproj/project/object.rb:296:in `configure_with_plist'
/Users/me/.rvm/gems/ruby-2.4.1/gems/xcodeproj-1.5.7/lib/xcodeproj/project.rb:262:in `new_from_plist'
/Users/me/.rvm/gems/ruby-2.4.1/gems/xcodeproj-1.5.7/lib/xcodeproj/project/object.rb:350:in `object_with_uuid'
/Users/me/.rvm/gems/ruby-2.4.1/gems/xcodeproj-1.5.7/lib/xcodeproj/project/object.rb:300:in `block (2 levels) in configure_with_plist'
/Users/me/.rvm/gems/ruby-2.4.1/gems/xcodeproj-1.5.7/lib/xcodeproj/project/object.rb:299:in `each'
/Users/me/.rvm/gems/ruby-2.4.1/gems/xcodeproj-1.5.7/lib/xcodeproj/project/object.rb:299:in `block in configure_with_plist'
/Users/me/.rvm/gems/ruby-2.4.1/gems/xcodeproj-1.5.7/lib/xcodeproj/project/object.rb:296:in `each'
/Users/me/.rvm/gems/ruby-2.4.1/gems/xcodeproj-1.5.7/lib/xcodeproj/project/object.rb:296:in `configure_with_plist'
/Users/me/.rvm/gems/ruby-2.4.1/gems/xcodeproj-1.5.7/lib/xcodeproj/project.rb:262:in `new_from_plist'
/Users/me/.rvm/gems/ruby-2.4.1/gems/xcodeproj-1.5.7/lib/xcodeproj/project.rb:203:in `initialize_from_file'
/Users/me/.rvm/gems/ruby-2.4.1/gems/xcodeproj-1.5.7/lib/xcodeproj/project.rb:103:in `open'
/Users/me/.rvm/gems/ruby-2.4.1/gems/cocoapods-1.5.3/lib/cocoapods/installer/analyzer.rb:918:in `block (2 levels) in inspect_targets_to_integrate'
/Users/me/.rvm/gems/ruby-2.4.1/gems/cocoapods-1.5.3/lib/cocoapods/installer/analyzer.rb:917:in `each'
/Users/me/.rvm/gems/ruby-2.4.1/gems/cocoapods-1.5.3/lib/cocoapods/installer/analyzer.rb:917:in `block in inspect_targets_to_integrate'
/Users/me/.rvm/gems/ruby-2.4.1/gems/cocoapods-1.5.3/lib/cocoapods/user_interface.rb:64:in `section'
/Users/me/.rvm/gems/ruby-2.4.1/gems/cocoapods-1.5.3/lib/cocoapods/installer/analyzer.rb:912:in `inspect_targets_to_integrate'
/Users/me/.rvm/gems/ruby-2.4.1/gems/cocoapods-1.5.3/lib/cocoapods/installer/analyzer.rb:78:in `analyze'
/Users/me/.rvm/gems/ruby-2.4.1/gems/cocoapods-1.5.3/lib/cocoapods/installer.rb:243:in `analyze'
/Users/me/.rvm/gems/ruby-2.4.1/gems/cocoapods-1.5.3/lib/cocoapods/installer.rb:154:in `block in resolve_dependencies'
/Users/me/.rvm/gems/ruby-2.4.1/gems/cocoapods-1.5.3/lib/cocoapods/user_interface.rb:64:in `section'
/Users/me/.rvm/gems/ruby-2.4.1/gems/cocoapods-1.5.3/lib/cocoapods/installer.rb:153:in `resolve_dependencies'
/Users/me/.rvm/gems/ruby-2.4.1/gems/cocoapods-1.5.3/lib/cocoapods/installer.rb:116:in `install!'
/Users/me/.rvm/gems/ruby-2.4.1/gems/cocoapods-1.5.3/lib/cocoapods/command/install.rb:41:in `run'
/Users/me/.rvm/gems/ruby-2.4.1/gems/claide-1.0.2/lib/claide/command.rb:334:in `run'
/Users/me/.rvm/gems/ruby-2.4.1/gems/cocoapods-1.5.3/lib/cocoapods/command.rb:52:in `run'
/Users/me/.rvm/gems/ruby-2.4.1/gems/cocoapods-1.5.3/bin/pod:55:in `<top (required)>'
/Users/me/.rvm/gems/ruby-2.4.1/bin/pod:23:in `load'
/Users/me/.rvm/gems/ruby-2.4.1/bin/pod:23:in `<main>'
/Users/me/.rvm/gems/ruby-2.4.1/bin/ruby_executable_hooks:15:in `eval'
/Users/me/.rvm/gems/ruby-2.4.1/bin/ruby_executable_hooks:15:in `<main>'

[dnkoutso]

This has already been fixed. https://github.com/CocoaPods/Xcodeproj/pull/579

Please update your xcodeproj gem to 1.6.0 using gem update xcodeproj

I will close this preemptively and will re-open if we find out its a further CocoaPods issue.