Cocoapods: Failed to connect to GitHub to update the CocoaPods/Specs specs repo

Question

One of the major issue is "weak cryptographic standards removed" after 2018 February.

Here a note: https://github.com/blog/2507-weak-cryptographic-standards-removed

To solve this, first you need to update openssl, then ruby, then cocoapod.

$ which openssl
/usr/bin/openssl

$ openssl version
OpenSSL 0.9.8zh 14 Jan 2016

$ /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"

$ brew update

$ brew install openssl

$ brew upgrade openssl

`` If you need to have this software first in your PATH run: echo 'export PATH="/usr/local/opt/openssl/bin:$PATH"' >> ~/.bash_profile

$ echo 'export PATH="/usr/local/opt/openssl/bin:$PATH"' >> ~/.bash_profile
$ source ~/.bash_profile

$ which openssl
/usr/local/opt/openssl/bin/openssl

$ openssl version
OpenSSL 1.0.2n  7 Dec 2017

$ brew install rbenv ruby-build

$ echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bash_profile
$ echo 'if which rbenv > /dev/null; then eval "$(rbenv init -)"; fi' >> ~/.bash_profile
$ source ~/.bash_profile

$ rbenv install --list

Available versions:
  1.8.5-p52
  1.8.5-p113
  1.8.5-p114
  1.8.5-p115
  1.8.5-p231
  1.8.6
:
  2.5.0-rc1
  2.5.0
  2.5.1
  2.6.0-dev
:

$ rbenv install 2.5.1

$ rbenv versions
* system (set by /Users/username/.rbenv/version)
  2.5.1

$ ruby --version
ruby 2.0.0p648 (2015-12-16 revision 53162) [universal.x86_64-darwin16]

$ rbenv global 2.5.1

$ rbenv versions
  system
* 2.5.1 (set by /Users/username/.rbenv/version)

$ ruby --version
ruby 2.5.1p57 (2018-03-29 revision 63029) [x86_64-darwin16]

$ gem install cocoapods -n /usr/local/bin

$ which pod
/usr/local/bin/pod

$ pod --version
1.5.3

now, you can do

$ pod update

source link: https://qiita.com/satoshi-iwaki/items/ed2c267127dcc80baa21

Finally managed to solve it by deleting ./cocoapods/repos/master and running pod install.

The more formal solution would probably go like this:

pod repo remove master
pod setup
pod install

If pod install fails after performing the first two steps, you may need to delete your Podfile.lock.

Why it initially failed to connect to Github is beyond me.

You can try this:

$sudo rm -fr ~/.cocoapods/repos/master
$pod setup
$pod install

but in my case I had to:

• delete the Podfile.lock and then

• $pod install

A another solution similar to Max's and Adem's in this thread is found in a CocoaPods issue:

brew install ruby
sudo gem install cocoapods

Verify that you're using the latest and correct Ruby with:

ruby --version
which ruby

Should be using /usr/local/bin/ruby

Reason: It turns out that Github updated to only support TLS 1.2 on Feb 22nd. Older versions of MacOS before High Sierra come preinstalled with Ruby 2.0. This version uses OpenSSL 0.9.8 which "will fail with servers supporting only TLS 1.2."

Updating to the latest Ruby (2.5) and latest CocoaPods (1.4) fixed this for me without having to do anything with openssl (Ruby updates openssl). This is a good solution if you don't want to update to High Sierra just yet.

I also encountered the same issue. In my scene, i used a mirror repo (hosted elsewhere) of cocoapods specs on github. When i updated the specs repo, it worked!

cd ~/.cocoapods/repos/master
git pull

This worked like magic

$sudo rm -fr ~/.cocoapods/repos/master
$pod setup
$pod install

Otherwise

$pod setup
Ctrl +C
cd ~/.cocoapods/repos 
$git clone --depth 1 https://github.com/CocoaPods/Specs.git master