Cocoapods: Trying to install cocoapod 'MaterialComponents/Dialogs', Error 416

Created on 13 Mar 2020 · 20Comments · Source: CocoaPods/CocoaPods

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Report

What did you do?

ℹ This is what my Podfile looks like

# Uncomment the next line to define a global platform for your project
platform :ios, '9.0'

target 'Delivery TipR' do
  # Comment the next line if you don't want to use dynamic frameworks
  use_frameworks!

  # Pods for Delivery TipR
    pod 'MaterialComponents/Dialogs'

  target 'Delivery TipRTests' do
    inherit! :search_paths
    # Pods for testing
  end

end

Then I ran pod install

What did you expect to happen?

ℹ Install all pod dependencies correctly.

What happened instead?

ℹ I got this error

Error

JSON::ParserError - 416: unexpected token at '{
          "name": "UnitTests",
          "test_type": "unit",
          "source_files": [
            "components/Chips/tests/unit/*.{h,m,swift}",
            "components/Chips/tests/unit/supplemental/*.{h,m,swift}"
          ],
          "resources": "components/Chips/tests/unit/'
/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/json/common.rb:156:in `parse'
/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/json/common.rb:156:in `parse'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.9.1/lib/cocoapods-core/specification/json.rb:61:in `from_json'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.9.1/lib/cocoapods-core/specification.rb:742:in `from_string'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.9.1/lib/cocoapods-core/specification.rb:716:in `from_file'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.9.1/lib/cocoapods-core/source.rb:186:in `specification'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/resolver/lazy_specification.rb:37:in `specification'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/resolver/lazy_specification.rb:29:in `subspec_by_name'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/resolver.rb:362:in `block in specifications_for_dependency'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/resolver.rb:362:in `map'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/resolver.rb:362:in `specifications_for_dependency'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/resolver.rb:165:in `search_for'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/resolver.rb:274:in `block in sort_dependencies'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/resolver.rb:267:in `each'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/resolver.rb:267:in `sort_by'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/resolver.rb:267:in `sort_dependencies'
/Library/Ruby/Gems/2.6.0/gems/molinillo-0.6.6/lib/molinillo/delegates/specification_provider.rb:53:in `block in sort_dependencies'
/Library/Ruby/Gems/2.6.0/gems/molinillo-0.6.6/lib/molinillo/delegates/specification_provider.rb:70:in `with_no_such_dependency_error_handling'
/Library/Ruby/Gems/2.6.0/gems/molinillo-0.6.6/lib/molinillo/delegates/specification_provider.rb:52:in `sort_dependencies'
/Library/Ruby/Gems/2.6.0/gems/molinillo-0.6.6/lib/molinillo/resolution.rb:288:in `initial_state'
/Library/Ruby/Gems/2.6.0/gems/molinillo-0.6.6/lib/molinillo/resolution.rb:210:in `start_resolution'
/Library/Ruby/Gems/2.6.0/gems/molinillo-0.6.6/lib/molinillo/resolution.rb:168:in `resolve'
/Library/Ruby/Gems/2.6.0/gems/molinillo-0.6.6/lib/molinillo/resolver.rb:43:in `resolve'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/resolver.rb:94:in `resolve'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/installer/analyzer.rb:1065:in `block in resolve_dependencies'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/user_interface.rb:64:in `section'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/installer/analyzer.rb:1063:in `resolve_dependencies'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/installer/analyzer.rb:124:in `analyze'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/installer.rb:410:in `analyze'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/installer.rb:235:in `block in resolve_dependencies'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/user_interface.rb:64:in `section'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/installer.rb:234: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>'

CocoaPods Environment

ℹ ### 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 : 11.3.1 (11C504)
         Git : git version 2.21.1 (Apple Git-122.3)
Ruby lib dir : /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib
Repositories : master - git - https://github.com/CocoaPods/Specs.git @ edc32cc393818cd581a1d4d24b163222c4e8d0e0

               trunk - CDN - https://cdn.cocoapods.org/

Installation Source

Executable Path: /usr/local/bin/pod

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

# Uncomment the next line to define a global platform for your project
platform :ios, '9.0'

target 'Delivery TipR' do
  # Comment the next line if you don't want to use dynamic frameworks
  use_frameworks!

  # Pods for Delivery TipR
    pod 'MaterialComponents/Dialogs'

  target 'Delivery TipRTests' do
    inherit! :search_paths
    # Pods for testing
  end

end

Project that demonstrates the issue

need sample

Source

gmhcode

👍1

Most helpful comment

fixed it, here's my command list after I got that last error

rm -rf ~/.cocoapods/repos/trunk/
pod install
(got another error)

pod cache clean --all
pod install
(got another error)

rm -rf ~/.cocoapods/repos/trunk/
pod install

then it worked

So from my beginning problem till now, here all the commands in order that seemed to have made it work.

gem list --local | grep cocoapods
sudo gem uninstall (all the items in the list)
sudo rm -rf ~/.cocoapods
sudo gem install cocoapods
cd (PROJECT DIRECTORY)
pod init
(put cocoapod in podfile)
pod install
rm -rf ~/.cocoapods/repos/trunk/
pod cache clean --all
pod install

Then it worked

gmhcode on 14 Mar 2020

👍25 🎉3 🚀2 ❤2 😄2

All 20 comments

Can you please run pod cache clean --all and try again?

dnkoutso on 13 Mar 2020

Can you please run pod cache clean --all and try again?

The same error occurs

gmhcode on 13 Mar 2020

I was able to integrate successfully on a sample app:

The Gemfile's dependencies are satisfied
Analyzing dependencies
Downloading dependencies
Installing MDFInternationalization (2.0.0)
Installing MDFTextAccessibility (2.0.0)
Installing MaterialComponents (107.2.0)
Generating Pods project
Integrating client project
Pod installation complete! There is 1 dependency from the Podfile and 3 total pods installed.

dnkoutso on 13 Mar 2020

can you show me your podfile? I tried on a sample app and was able to install alamofire. But MaterialComponents still gave me the error

gmhcode on 14 Mar 2020

use_frameworks!
platform :ios, '12.0'

install! 'cocoapods'

target 'SampleApp' do
  use_frameworks!
  pod 'MaterialComponents/Dialogs'
end

dnkoutso on 14 Mar 2020

yea, still getting the same error

gmhcode on 14 Mar 2020

sorry I am unsure what the issue will. We will need a sample app or clear reproducible steps for us ti diagnose given that it works here for me locally. I tried '9.0' platform also and it still worked and wiped out cache.

dnkoutso on 14 Mar 2020

I have the same issue and I solved it by fully uninstall cocoapods (please also delete /.cocoapods)

shunnokw on 14 Mar 2020

well there's apparently progress. Deleting cocoapods, including /.cocoapods and re-installing then trying to add the cocoapod to my project got me a different error.

SON::ParserError - 767: unexpected token at '' /Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/2.6.0/json/common.rb:156:inparse'
/Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/2.6.0/json/common.rb:156:in parse' /Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/gems/2.6.0/gems/cocoapods-core-1.9.1/lib/cocoapods-core/specification/json.rb:61:infrom_json'
/Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/gems/2.6.0/gems/cocoapods-core-1.9.1/lib/cocoapods-core/specification.rb:742:in from_string' /Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/gems/2.6.0/gems/cocoapods-core-1.9.1/lib/cocoapods-core/specification.rb:716:infrom_file'
/Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/gems/2.6.0/gems/cocoapods-core-1.9.1/lib/cocoapods-core/source.rb:186:in specification' /Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/resolver/lazy_specification.rb:37:inspecification'
/Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/resolver/lazy_specification.rb:29:in subspec_by_name' /Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/resolver.rb:362:inblock in specifications_for_dependency'
/Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/resolver.rb:362:in map' /Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/resolver.rb:362:inspecifications_for_dependency'
/Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/resolver.rb:165:in search_for' /Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/resolver.rb:274:inblock in sort_dependencies'
/Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/resolver.rb:267:in each' /Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/resolver.rb:267:insort_by'
/Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/resolver.rb:267:in sort_dependencies' /Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/gems/2.6.0/gems/molinillo-0.6.6/lib/molinillo/delegates/specification_provider.rb:53:inblock in sort_dependencies'
/Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/gems/2.6.0/gems/molinillo-0.6.6/lib/molinillo/delegates/specification_provider.rb:70:in with_no_such_dependency_error_handling' /Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/gems/2.6.0/gems/molinillo-0.6.6/lib/molinillo/delegates/specification_provider.rb:52:insort_dependencies'
/Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/gems/2.6.0/gems/molinillo-0.6.6/lib/molinillo/resolution.rb:288:in initial_state' /Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/gems/2.6.0/gems/molinillo-0.6.6/lib/molinillo/resolution.rb:210:instart_resolution'
/Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/gems/2.6.0/gems/molinillo-0.6.6/lib/molinillo/resolution.rb:168:in resolve' /Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/gems/2.6.0/gems/molinillo-0.6.6/lib/molinillo/resolver.rb:43:inresolve'
/Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/resolver.rb:94:in resolve' /Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/installer/analyzer.rb:1065:inblock in resolve_dependencies'
/Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/user_interface.rb:64:in section' /Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/installer/analyzer.rb:1063:inresolve_dependencies'
/Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/installer/analyzer.rb:124:in analyze' /Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/installer.rb:410:inanalyze'
/Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/installer.rb:235:in block in resolve_dependencies' /Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/user_interface.rb:64:insection'
/Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/installer.rb:234:in resolve_dependencies' /Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/installer.rb:156:ininstall!'
/Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/command/install.rb:52:in run' /Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/gems/2.6.0/gems/claide-1.0.3/lib/claide/command.rb:334:inrun'
/Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/gems/2.6.0/gems/cocoapods-1.9.1/lib/cocoapods/command.rb:52:in run' /Users/greghughes/.rvm/rubies/ruby-2.6.3/lib/ruby/gems/2.6.0/gems/cocoapods-1.9.1/bin/pod:55:in /usr/local/bin/pod:23:in load' /usr/local/bin/pod:23:in

'
/Users/greghughes/.rvm/rubies/ruby-2.6.3/bin/ruby_executable_hooks:24:in

eval'
/Users/greghughes/.rvm/rubies/ruby-2.6.3/bin/ruby_executable_hooks:24:in

gmhcode on 14 Mar 2020

fixed it, here's my command list after I got that last error

rm -rf ~/.cocoapods/repos/trunk/
pod install
(got another error)

pod cache clean --all
pod install
(got another error)

rm -rf ~/.cocoapods/repos/trunk/
pod install

then it worked

So from my beginning problem till now, here all the commands in order that seemed to have made it work.

Then it worked

gmhcode on 14 Mar 2020

👍25 🎉3 🚀2 ❤2 😄2

fixed it, here's my command list after I got that last error

rm -rf ~/.cocoapods/repos/trunk/
pod install
(got another error)

pod cache clean --all
pod install
(got another error)

rm -rf ~/.cocoapods/repos/trunk/
pod install

then it worked

So from my beginning problem till now, here all the commands in order that seemed to have made it work.

gem list --local | grep cocoapods
sudo gem uninstall (all the items in the list)
sudo rm -rf ~/.cocoapods
sudo gem install cocoapods
cd (PROJECT DIRECTORY)
pod init
(put cocoapod in podfile)
pod install
rm -rf ~/.cocoapods/repos/trunk/
pod cache clean --all
pod install

Then it worked

I have followed all steps but after that it gives Mudule 'firebase_core' not found. Error while building.

rushabhshah065 on 30 Mar 2020

rm -rf ~/.cocoapods/repos/trunk/
pod install
pod update xxx
worked for me!

ladeng on 12 Apr 2020

fixed it, here's my command list after I got that last error

rm -rf ~/.cocoapods/repos/trunk/
pod install
(got another error)

pod cache clean --all
pod install
(got another error)

rm -rf ~/.cocoapods/repos/trunk/
pod install

then it worked

So from my beginning problem till now, here all the commands in order that seemed to have made it work.

gem list --local | grep cocoapods
sudo gem uninstall (all the items in the list)
sudo rm -rf ~/.cocoapods
sudo gem install cocoapods
cd (PROJECT DIRECTORY)
pod init
(put cocoapod in podfile)
pod install
rm -rf ~/.cocoapods/repos/trunk/
pod cache clean --all
pod install

Then it worked

It helped me with flutter firestore package

ehsanbigzad on 16 Apr 2020

❤1

fixed it, here's my command list after I got that last error
rm -rf ~/.cocoapods/repos/trunk/
pod install
(got another error)
pod cache clean --all
pod install
(got another error)
rm -rf ~/.cocoapods/repos/trunk/
pod install
then it worked
So from my beginning problem till now, here all the commands in order that seemed to have made it work.
gem list --local | grep cocoapods
sudo gem uninstall (all the items in the list)
sudo rm -rf ~/.cocoapods
sudo gem install cocoapods
cd (PROJECT DIRECTORY)
pod init
(put cocoapod in podfile)
pod install
rm -rf ~/.cocoapods/repos/trunk/
pod cache clean --all
pod install
Then it worked

It helped me with flutter firestore package

YOU'VE SAVED ME A DAY OF LIFE!))))

PolyKuzin on 22 Apr 2020

fixed it, here's my command list after I got that last error

rm -rf ~/.cocoapods/repos/trunk/
pod install
(got another error)

pod cache clean --all
pod install
(got another error)

rm -rf ~/.cocoapods/repos/trunk/
pod install

then it worked

So from my beginning problem till now, here all the commands in order that seemed to have made it work.

gem list --local | grep cocoapods
sudo gem uninstall (all the items in the list)
sudo rm -rf ~/.cocoapods
sudo gem install cocoapods
cd (PROJECT DIRECTORY)
pod init
(put cocoapod in podfile)
pod install
rm -rf ~/.cocoapods/repos/trunk/
pod cache clean --all
pod install

Then it worked

For those who is encountering integration with Google "materialComponents/*" this might help you, i had issue with "pod 'MaterialComponents/TextControls+OutlinedTextFields'" and this helped.

DevarajNiOS on 22 Apr 2020

fixed it, here's my command list after I got that last error

rm -rf ~/.cocoapods/repos/trunk/
pod install
(got another error)

pod cache clean --all
pod install
(got another error)

rm -rf ~/.cocoapods/repos/trunk/
pod install

then it worked

So from my beginning problem till now, here all the commands in order that seemed to have made it work.

gem list --local | grep cocoapods
sudo gem uninstall (all the items in the list)
sudo rm -rf ~/.cocoapods
sudo gem install cocoapods
cd (PROJECT DIRECTORY)
pod init
(put cocoapod in podfile)
pod install
rm -rf ~/.cocoapods/repos/trunk/
pod cache clean --all
pod install

Then it worked

God Bless You! YOU'VE SAVED ME A DAY OF LIFE!

SunshineTraveller on 23 Apr 2020

fixed it, here's my command list after I got that last error

rm -rf ~/.cocoapods/repos/trunk/
pod install
(got another error)

pod cache clean --all
pod install
(got another error)

rm -rf ~/.cocoapods/repos/trunk/
pod install

then it worked

So from my beginning problem till now, here all the commands in order that seemed to have made it work.

gem list --local | grep cocoapods
sudo gem uninstall (all the items in the list)
sudo rm -rf ~/.cocoapods
sudo gem install cocoapods
cd (PROJECT DIRECTORY)
pod init
(put cocoapod in podfile)
pod install
rm -rf ~/.cocoapods/repos/trunk/
pod cache clean --all
pod install

> Then it worked

Was facing same issue for Firebase dependencies, this above solution helps me .thanks A lot
i used
rm -rf ~/.cocoapods/repos/trunk/
pod install

JavaBlackBelt on 8 May 2020

fixed it, here's my command list after I got that last error

rm -rf ~/.cocoapods/repos/trunk/
pod install
(got another error)

pod cache clean --all
pod install
(got another error)

rm -rf ~/.cocoapods/repos/trunk/
pod install

then it worked

So from my beginning problem till now, here all the commands in order that seemed to have made it work.

gem list --local | grep cocoapods
sudo gem uninstall (all the items in the list)
sudo rm -rf ~/.cocoapods
sudo gem install cocoapods
cd (PROJECT DIRECTORY)
pod init
(put cocoapod in podfile)
pod install
rm -rf ~/.cocoapods/repos/trunk/
pod cache clean --all
pod install

Then it worked

After struggling for a day, your solution helped me! Thank you so so so much!

nivas37 on 24 May 2020

fixed it, here's my command list after I got that last error

rm -rf ~/.cocoapods/repos/trunk/
pod install
(got another error)

pod cache clean --all
pod install
(got another error)

rm -rf ~/.cocoapods/repos/trunk/
pod install

then it worked

So from my beginning problem till now, here all the commands in order that seemed to have made it work.

gem list --local | grep cocoapods
sudo gem uninstall (all the items in the list)
sudo rm -rf ~/.cocoapods
sudo gem install cocoapods
cd (PROJECT DIRECTORY)
pod init
(put cocoapod in podfile)
pod install
rm -rf ~/.cocoapods/repos/trunk/
pod cache clean --all
pod install

Then it worked

yes it worked thanks

TyagiShishira on 25 May 2020

I was trying to add 'MaterialComponents/Ripple' and was running into similar issues. I switched to adding 'MaterialComponents' and that worked for me.
Sequence of cmds :
pod repo remove trunk
pod setup

pod install