Difficulty installed Pod in Podfile - xcode

Question

I'm trying to install the OpenTok pod to my pod file. I have a very big project with many pods installed from the previous developers.
The pod file looks something like this:
source 'https://github.com/CocoaPods/Specs.git'
platform :ios, '8.0'
def common_pods
pod 'TPKeyboardAvoiding'
pod 'Fabric'
pod 'Crashlytics'
pod 'FBSDKCoreKit', '~> 4.11.0'
pod 'FBSDKLoginKit', '~> 4.11.0'
pod 'MBProgressHUD'
pod 'BMEApi', :path => 'BMEApi'
pod 'NMRangeSlider'
pod 'SDWebImage'
pod 'ASMediaFocusManager'
pod 'QBImagePickerController', '~> 3.4'
pod 'HPGrowingTextView', '~> 1.1'
pod 'HNKGooglePlacesAutocomplete', '~> 1.1'
pod 'Stripe', '~> 8.0'
end
target 'My_Target' do
common_pods
end
target 'My_Target_Appstore' do
common_pods
end
When I try to add
pod 'OpenTok'
to the "common_pods" section, I get a crash in the terminal when I try to run pod install. It says something along the lines of "Oh no, an error has occurred" asking me to write a ticket.
When I open up my project, all the pods files are messed up and Xcode can't locate any of them.
To test to see if there was something wrong with the framework, I tried installing it on a random test project and it worked perfectly
So the issue here is why won't it install properly on this project, but it will on the other project, and why does it mess up the entire pod file?

Answer 1

Try to add use_frameworks!
So, result pod file (name of the my test project - stackoverflow-39682480):
source 'https://github.com/CocoaPods/Specs.git'
platform :ios, '8.0'
use_frameworks!
def common_pods
pod 'TPKeyboardAvoiding'
pod 'Fabric'
pod 'Crashlytics'
pod 'FBSDKCoreKit', '~> 4.11.0'
pod 'FBSDKLoginKit', '~> 4.11.0'
pod 'MBProgressHUD'
# I Do not have BMEApi lib, so i disable it of me
#pod 'BMEApi', :path => 'BMEApi'
pod 'NMRangeSlider'
pod 'SDWebImage'
pod 'ASMediaFocusManager'
pod 'QBImagePickerController', '~> 3.4'
pod 'HPGrowingTextView', '~> 1.1'
pod 'HNKGooglePlacesAutocomplete', '~> 1.1'
pod 'Stripe', '~> 8.0'
pod 'OpenTok'
end
target 'stackoverflow-39682480' do
common_pods
end
Result