Unable to find a specification for `podName`

Question

I am unable to find podSpec for any pod listed in my Podfile. My Podfile looks like this:

use_frameworks!

target 'MyTargetName' do
    pod 'Gloss'
    pod 'IQKeyboardManagerSwift'
    pod 'ICViewPager'
    pod 'SkyFloatingLabelTextField'
    pod "KCFloatingActionButton"
    pod "TSMessages"
end

Initially I got an error:

[!] Unable to find a specification for `IQKeyboardManagerSwift`

I've tried removing IQKeyboardManagerSwift, but then I get another error:

[!] Unable to find a specification for `ICViewPager`

I've checked both of those projects, and they exist on cocoapods.org, and podspec exists on github as well as the pod repo. Everything started when I updated to Xcode 8.0 and Swift 3.0. Any idea what has gone wrong here?

EDIT:

I managed ti find a workaround that fixed issue related to downloading cocoapods:

use_frameworks!

target 'MyTargetName' do
    pod 'Gloss'
    pod 'IQKeyboardManagerSwift', :git => 'https://github.com/hackiftekhar/IQKeyboardManager'
    pod 'ICViewPager', :git => 'https://github.com/iltercengiz/ICViewPager'
    pod 'SkyFloatingLabelTextField’, :git => 'https://github.com/Skyscanner/SkyFloatingLabelTextField'
    pod "KCFloatingActionButton”, :git => 'https://github.com/kciter/KCFloatingActionButton'
    pod "TSMessages”, :git => 'https://github.com/KrauseFx/TSMessages'
end

Answer 1

Do you have the source at the top of your Podfile?

source 'https://github.com/CocoaPods/Specs.git'

Answer 2

Do these:

$ sudo rm -fr ~/Library/Caches/CocoaPods/
$ rm -fr ~/.cocoapods/repos/master/
$ sudo rm -fr Pods/
$ sudo gem install cocoapods
$ pod setup

Then run $ pod install .. Hopefully It works