CLTypingLabel. ArgumentError - Illformed requirement `"~-> 0.4.0"`

`bijeshkawan@Bijeshs-MacBook-Pro Flash-Chat-iOS13 % pod install xcode-select: error: tool 'xcodebuild' requires Xcode, but active developer directory '/Library/Developer/CommandLineTools' is a command line tools instance

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Command

/usr/local/bin/pod install

Report

What did you do?
What did you expect to happen?
What happened instead?

Stack

   CocoaPods : 1.9.1
        Ruby : ruby 2.6.3p62 (2019-04-16 revision 67580) [universal.x86_64-darwin19]
    RubyGems : 3.0.3
        Host : Mac OS X 10.15.3 (19D76)
       Xcode :  ()
         Git : git version 2.21.0 (Apple Git-122.2)
Ruby lib dir : /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib
Repositories : trunk - CDN - https://cdn.cocoapods.org/

Plugins

cocoapods-deintegrate : 1.0.4
cocoapods-plugins     : 1.0.0
cocoapods-search      : 1.0.0
cocoapods-stats       : 1.1.0
cocoapods-trunk       : 1.4.1
cocoapods-try         : 1.1.0

Podfile

platform :ios, '13.0'

target 'Flash Chat iOS13' do

  use_frameworks!

  # Pods for Flash Chat iOS13

pod 'CLTypingLabel', '~-> 0.4.0'

end

Error

ArgumentError - Illformed requirement `"~-> 0.4.0"`
/Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.9.1/lib/cocoapods-core/requirement.rb:63:in `parse'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.9.1/lib/cocoapods-core/requirement.rb:88:in `block in initialize'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.9.1/lib/cocoapods-core/requirement.rb:88:in `map!'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.9.1/lib/cocoapods-core/requirement.rb:88:in `initialize'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.9.1/lib/cocoapods-core/requirement.rb:34:in `new'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.9.1/lib/cocoapods-core/requirement.rb:34:in `create'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.9.1/lib/cocoapods-core/dependency.rb:101:in `initialize'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.9.1/lib/cocoapods-core/podfile/target_definition.rb:979:in `new'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.9.1/lib/cocoapods-core/podfile/target_definition.rb:979:in `block in pod_dependencies'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.9.1/lib/cocoapods-core/podfile/target_definition.rb:975:in `map'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.9.1/lib/cocoapods-core/podfile/target_definition.rb:975:in `pod_dependencies'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.9.1/lib/cocoapods-core/podfile/target_definition.rb:96:in `non_inherited_dependencies'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.9.1/lib/cocoapods-core/podfile/target_definition.rb:74:in `dependencies'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/installer/analyzer/podfile_dependency_cache.rb:44:in `block in from_podfile'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/installer/analyzer/podfile_dependency_cache.rb:43:in `each'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/installer/analyzer/podfile_dependency_cache.rb:43:in `from_podfile'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/installer/analyzer.rb:85:in `initialize'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/installer.rb:416:in `new'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/installer.rb:416:in `create_analyzer'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/installer.rb:228:in `resolve_dependencies'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/installer.rb:156:in `install!'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/command/install.rb:52:in `run'
/Library/Ruby/Gems/2.6.0/gems/claide-1.0.3/lib/claide/command.rb:334:in `run'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/command.rb:52:in `run'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.9.1/bin/pod:55:in `<top (required)>'
/usr/local/bin/pod:23:in `load'
/usr/local/bin/pod:23:in `<main>'

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[!] Oh no, an error occurred.

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Looking for related issues on cocoapods/cocoapods...

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ArgumentError - Illformed requirement " Source = 0.0.1" https://github.com/CocoaPods/CocoaPods/issues/2850 [closed] [4 comments] 20 Nov 2014

bijeshkawan@Bijeshs-MacBook-Pro Flash-Chat-iOS13 % `

appbrewery / Flash-Chat-iOS13