Unable to download Library using cocoaPods - swift

Question

I am new in swift programming . I am trying to download libraries for the project . I have installed cocoa pods : sudo gem install cocoa pods, created pod file with all libraries which I need : pod 'GoogleMaps'. After pod install I got an error:
Unable to satisfy the following requirements:
- `GoogleMaps` required by `Podfile`
- `GoogleMaps` required by `Podfile`
- `GoogleMaps (= 2.3.1)` required by `Podfile.lock`
Specs satisfying the `GoogleMaps, GoogleMaps (= 2.3.1)` dependency
were found, but they required a higher minimum deployment target.
[!] Automatically assigning platform ios with version 7.0 on target
Taxi for rider because no platform was specified. Please specify a
platform for this target in your Podfile. See
`https://guides.cocoapods.org/syntax/podfile.html#platform`.
My pod file:
# Uncomment the next line to define a global platform for your
project
# platform :ios, '9.0'
target 'Taxi for rider' do
# Comment the next line if you're not using Swift and don't want to
use dynamic frameworks
use_frameworks!
# Pods for Taxi for rider
pod 'Firebase'
pod 'Firebase/Storage'
pod 'Firebase/Auth'
pod 'Firebase/Database'
pod 'GoogleMaps'
pod 'GoogleMaps'
pod 'GooglePlaces'
pod 'GooglePlacesAPI'
pod 'GooglePlacePicker'
pod 'SwiftyJSON'
pod 'Firebase/Core'
pod 'Firebase/Storage'
end

Answer 1

Replace your podfile text with below text:
# Uncomment the next line to define a global platform for your project
# platform :ios, '9.0'
target 'Taxi for rider' do
# Comment the next line if you're not using Swift and don't want to use dynamic frameworks
use_frameworks!
# Pods for Taxi for rider
pod 'Firebase'
pod 'Firebase/Storage'
pod 'Firebase/Auth'
pod 'Firebase/Database'
pod 'GoogleMaps'
pod 'GoogleMaps'
pod 'GooglePlaces'
pod 'GooglePlacesAPI'
pod 'GooglePlacePicker'
pod 'SwiftyJSON'
pod 'Firebase/Core'
pod 'Firebase/Storage'
end
Below is wrong line in your code:
# Uncomment the next line to define a global platform for your
project
Which should be:
# Uncomment the next line to define a global platform for your project
And you have added pod 'GoogleMaps' multiple times.

Answer 2

You should define a platform for your project in your Podfile. Append this to the beginning of your Podfile:
platform :<ios, macos, tvos etc.>, '<version of the OS>'
Example:
platform :ios, '9.0'

Answer 3

Step Of Install Cocoa Pods.
Step 1 - Close your Xcode project which you install pod file. and Open terminal.
Step 2 - type cd command and Drag your project path.
Step 3 - press Enter and type pod init conmmand then open your project folder, now you can see pod file
Step 4 - open pod file and write pod name which you install
Step 5 - save and close pod file and again open terminal and write pod install command and wait few minutes to install pod
After install pod go to your project folder and open .work space file and enjoy.
now pod is installed enjoy and used.