copy an paste the following code in podfile
pod init
'''
platform :ios, '9.0' #Uncomment this line if you're using Swift use_frameworks!
target 'BikeTrip Version 1.0' do
pod 'Firebase', '>= 2.5.0'
end
target 'BikeTrip Version 1.0Tests' do
end
target 'BikeTrip Version 1.0UITests' do
end
'''
pod install
open xcworkspace after this