Why not installed podfile? - ios

Question

I created my app. When I try to install a podfile there, it shows me an error:
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### Command
/usr/local/bin/pod init
### Report
* What did you do?
* What did you expect to happen?
* What happened instead?
### Stack
CocoaPods : 1.5.3
Ruby : ruby 2.3.7p456 (2018-03-28 revision 63024) [universal.x86_64-darwin18]
RubyGems : 2.5.2.3
Host : (18G95)
Xcode : 11.0 (11A420a)
Git : git version 2.21.0 (Apple Git-122)
Ruby lib dir : /System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib
Repositories : master - https://github.com/CocoaPods/Specs.git # 6359a249f00fcdd63324ef44a867f16591aac646
### Plugins
cocoapods-deintegrate : 1.0.2
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
### 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
/Library/Ruby/Gems/2.3.0/gems/xcodeproj-1.5.7/lib/xcodeproj/project/object.rb:321:in `configure_with_plist'
/Library/Ruby/Gems/2.3.0/gems/xcodeproj-1.5.7/lib/xcodeproj/project.rb:262:in `new_from_plist'
/Library/Ruby/Gems/2.3.0/gems/xcodeproj-1.5.7/lib/xcodeproj/project/object.rb:350:in `object_with_uuid'
/Library/Ruby/Gems/2.3.0/gems/xcodeproj-1.5.7/lib/xcodeproj/project/object.rb:300:in `block (2 levels) in configure_with_plist'
/Library/Ruby/Gems/2.3.0/gems/xcodeproj-1.5.7/lib/xcodeproj/project/object.rb:299:in `each'
/Library/Ruby/Gems/2.3.0/gems/xcodeproj-1.5.7/lib/xcodeproj/project/object.rb:299:in `block in configure_with_plist'
/Library/Ruby/Gems/2.3.0/gems/xcodeproj-1.5.7/lib/xcodeproj/project/object.rb:296:in `each'
/Library/Ruby/Gems/2.3.0/gems/xcodeproj-1.5.7/lib/xcodeproj/project/object.rb:296:in `configure_with_plist'
/Library/Ruby/Gems/2.3.0/gems/xcodeproj-1.5.7/lib/xcodeproj/project.rb:262:in `new_from_plist'
/Library/Ruby/Gems/2.3.0/gems/xcodeproj-1.5.7/lib/xcodeproj/project/object.rb:350:in `object_with_uuid'
/Library/Ruby/Gems/2.3.0/gems/xcodeproj-1.5.7/lib/xcodeproj/project/object.rb:300:in `block (2 levels) in configure_with_plist'
/Library/Ruby/Gems/2.3.0/gems/xcodeproj-1.5.7/lib/xcodeproj/project/object.rb:299:in `each'
/Library/Ruby/Gems/2.3.0/gems/xcodeproj-1.5.7/lib/xcodeproj/project/object.rb:299:in `block in configure_with_plist'
/Library/Ruby/Gems/2.3.0/gems/xcodeproj-1.5.7/lib/xcodeproj/project/object.rb:296:in `each'
/Library/Ruby/Gems/2.3.0/gems/xcodeproj-1.5.7/lib/xcodeproj/project/object.rb:296:in `configure_with_plist'
/Library/Ruby/Gems/2.3.0/gems/xcodeproj-1.5.7/lib/xcodeproj/project.rb:262:in `new_from_plist'
/Library/Ruby/Gems/2.3.0/gems/xcodeproj-1.5.7/lib/xcodeproj/project.rb:203:in `initialize_from_file'
/Library/Ruby/Gems/2.3.0/gems/xcodeproj-1.5.7/lib/xcodeproj/project.rb:103:in `open'
/Library/Ruby/Gems/2.3.0/gems/cocoapods-1.5.3/lib/cocoapods/command/init.rb:41:in `validate!'
/Library/Ruby/Gems/2.3.0/gems/claide-1.0.2/lib/claide/command.rb:333:in `run'
/Library/Ruby/Gems/2.3.0/gems/cocoapods-1.5.3/lib/cocoapods/command.rb:52:in `run'
/Library/Ruby/Gems/2.3.0/gems/cocoapods-1.5.3/bin/pod:55:in `<top (required)>'
/usr/local/bin/pod:22:in `load'
/usr/local/bin/pod:22:in `<main>'
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[!] Oh no, an error occurred.
Search for existing GitHub issues similar to yours:
https://github.com/CocoaPods/CocoaPods/search?q=%5B%21%5D+Xcodeproj+doesn%27t+know+about+the+following+attributes+%7B%22inputFileListPaths%22%3D%3E%5B%5D%2C+%22outputFileListPaths%22%3D%3E%5B%5D%7D+for+the+%27PBXShellScriptBuildPhase%27+isa.%0AIf+this+attribute+was+generated+by+Xcode+please+file+an+issue%3A+https%3A%2F%2Fgithub.com%2FCocoaPods%2FXcodeproj%2Fissues%2Fnew&type=Issues
If none exists, create a ticket, with the template displayed above, on:
https://github.com/CocoaPods/CocoaPods/issues/new
Be sure to first read the contributing guide for details on how to properly submit a ticket:
https://github.com/CocoaPods/CocoaPods/blob/master/CONTRIBUTING.md
Don't forget to anonymize any private data!
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Please help me for fix this problem

Answer 1

This happens because of this line:
Xcodeproj doesn't know about the following attributes {"inputFileListPaths"=>[], "outputFileListPaths"=>[]} for the 'PBXShellScriptBuildPhase' isa.
This is a know bug introduced in Xcode 10, that has conflict with Cocoapods 1.5.x. The .xcodeproj file included two vars inside the scriptBuildPhase that Cocoapods doesn't know how to parse.
You have two possible solutions:
1) Updating Cocoapods xcodeproj gem:
sudo gem update xcodeproj
2) Manually removing inputFileListPaths and outputFileListPaths from your project file:
Right click in the .xcodeproj file > Show Package Content > open the .pbxproj file using any text editor > find and remove all the inputFileListPaths and outputFileListPaths references: