RuntimeError - [Xcodeproj] Unknown object version

Update your cocoapods if command like text below

Update cocoapods ---> Sudo gem install cocoapods --pre



### Command

```

/usr/local/bin/pod init

```

### Report

* What did you do?

* What did you expect to happen?

* What happened instead?

### Stack

```

   CocoaPods : 1.4.0

        Ruby : ruby 2.3.3p222 (2016-11-21 revision 56859) [universal.x86_64-darwin17]

    RubyGems : 2.5.2

        Host : Mac OS X 10.13.4 (17E199)

       Xcode : 9.2 (9C40b)

         Git : git version 2.13.1

Ruby lib dir : /System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib

Repositories : master - https://github.com/CocoaPods/Specs.git @ 9107e140801fb9b3bd21a00ded7d72ca3bc8fbcd

```

### 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] Unknown object version.

/Library/Ruby/Gems/2.3.0/gems/xcodeproj-1.5.4/lib/xcodeproj/project.rb:217:in `initialize_from_file'

/Library/Ruby/Gems/2.3.0/gems/xcodeproj-1.5.4/lib/xcodeproj/project.rb:102:in `open'

/Library/Ruby/Gems/2.3.0/gems/cocoapods-1.4.0/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-1.4.0/lib/cocoapods/command.rb:52:in `run'

/Library/Ruby/Gems/2.3.0/gems/cocoapods-1.4.0/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=%5BXcodeproj%5D+Unknown+object+version.&type=Issues

If none exists, create a ticket, with the template displayed above, on:

https://github.com/CocoaPods/CocoaPods/issues/new

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https://github.com/CocoaPods/CocoaPods/blob/master/CONTRIBUTING.md

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