I am trying to make a Swift framework. This framework depends on two libraries, Alamofire and SwiftyJSON, which are both written in Swift.
I am using CocoaPods to import these libraries in my framework. Here is the content of my Podfile:
source 'https://github.com/CocoaPods/Specs.git'
platform :ios, '8.0'
use_frameworks!
pod 'Alamofire', '1.2'
pod 'SwiftyJSON', '2.2'
In my framework, I have a class that imports and uses these two modules:
import Alamofire
import SwiftyJSON
I can run pod install and build my framework successfully!
Now things get tricky when I'm trying to use my framework in a Swift project.
I copy the .framework file into my project.
In the Build Phases of my project's target, I add a Copy Files Phase with "Destination" set to "Frameworks", and add my framework file.
I import my framework in a Swift class of my project:
import MyFramework
The problem is: Xcode keeps telling me
Missing required module 'SwiftyJSON'
And more surprising: if I don't use SwiftyJSON and remove it from my framework (but still use Alamofire)... It works! And I have the same problem with any other lib than SwiftyJSON. Only Alamofire seems to work.
I've already seen some issues, like this one, and tried some things (changing Build Settings, adding the libraries to the Linked Libraries, adding a Bridging Header though I'm not dealing with ObjC) with no effect...
Does anyone have any ideas on how to solve this problem? It's driving me nuts!
EDIT: I'm using Cocoapods v0.37.0.beta.1. Same issue with v0.36.4.
Problem solved after updating Xcode to version 6.3.1.
Related
I am doing Objective-C in iOS app. But the problem is I want to add few Objective-C apis into that I added successfully earlier with cocoa pods, But, now I want to add Swift Api through cocoa pods, but the problem getting while installing is following.
[!] Pods written in Swift can only be integrated as frameworks; add use_frameworks! to your Podfile or target to opt into using it. The Swift Pods being used are: apis
But I can't add this manually due to its large api and it contains sub folders.
But, if I remove "#" key from use_frameworks!, its getting installed, but, the old Objective-C apis getting file not found in my project.
Even I have very basic knowledge at installing frameworks/apis through cocoa pods.
Can any one suggest me how to over come this.
use_frameworks! will work with Objective-C pod only if they are dynamic frameworks not static libraries. Most of the popular third party libraries are using dynamic frameworks like AFNetworking, GoogleMaps etc.
Make sure all your Objective-C pods are dynamic frameworks. If you are not sure just create a sample project with cocoapods and use use_frameworks!. Try adding one by one, all the pods and find out which one is the culprit.
I had that problem once, what I did was use use_frameworks! like you mentioned, and then I changed how the Objective-C imports are written.
The command use_frameworks! turns each pod into a Framework, so in your projects the .h and .m files are no longer visible to the import like they would usually.
As a result, instead of using for example #import <AFNetworking/AFNetworking.h>, you do #import AFNetworking;
From my own experience, and maybe it was just a special case for my project. But turning everything into frameworks slowed down the compile time on Xcode and it made my App Package bigger for some reason.
Podfile file:
platform :ios, '10.0'
use_frameworks!
def pods
pod 'Alamofire', '= 4.4'
pod 'SwiftyJSON' '= 3.1.4'
pod 'MBProgressHUD'
end
target 'YourProject' do
pods
end
YourProject-Bridging-Header.h
#import <MBProgressHUD/MBProgressHUD.h>
Build Settings
In Xcode 8 I'm having trouble importing any Swift 2.3 or 3 framework that was added with Cocoapods into my project.
There is a public umbrella.h file, but for some reason Xcode can't find the framework when I try to #import it.
As an example, create any Objective-C project, use the following Podfile, pod install, and then try the #import. It asks me to update the code to swift 2.3 or 3 even if that code is already Swift 2.3 or Swift 3 code. I've cleaned and tried to rebuild as well.
platform :ios, '8.0'
use_frameworks!
target 'testingFrameworks' do
pod 'SwiftyJSON'
end
Did I miss a step?
I used socketIO and was having the same problem. My solution to this is:
Close project.
Delete pod files, delivered files, pod framework, workspace file (clean up project)
pod install
Reopen workspace, upgrade swift syntax if xcode ask for, build a few times.
You might need to fix something for the new swift.
I'm using switf and pods. When i type 'pod install' on my terminal, Instead of having the frameworks downloaded to my project, i get the files.
This makes no difference to me, except for the fact that when i want to import them in my project, i always get an error saying they can't be found.
Here is my pod file
# Uncomment this line to define a global platform for your project
platform :ios, '8.0'
# Uncomment this line if you're using Swift
use_frameworks!
target 'Project' do
pod 'MSSTabbedPageViewController'
pod 'PageMenu'
end
As ocarol stated, import the framework. However, before importing at the top of the file you want to use the framework, build the project, as Xcode seems to not link the pod's to the project automatically.
Also open the .xcworkspace file that pod install generates.
You use these libraries as frameworks (use_frameworks!). So you have to import the framework at the top of the Swift file, like:
import MSSTabbedPageViewController
if had created a bridging header file, you can import the framework in it.
I am pretty new to swift and iOS development. I am trying to write a framework using swift 2.0. I need to import the CocoasMQTT library in my framework. I am using cocoa pods approach for this and i added
use_frameworks!
pod 'CocoaMQTT'
in my pod file. After this I pod install. Now in my Pods directory I can only see debug.xconfig and release.xconfig files(in xcode directory view). I think this should have worked but I am unable to import the library in my swift classes as it says that "No Such module 'CocoaMQTT'" when i try
import CocoaMQTT
in my code.
Can anyone explain if I am doing something wrong. P.S., as I have included use_frameworks! and I am using iOS version 9 for development so I think I don't have to write the Objective C bridge header.
I had same problem to. My problem cause about using CocoaPods. I think you open .xcodeproj file by Xcode but if you install pods you must open .xcworkspacefile. You should look raywenderlich's forum for using cocoapods.
https://www.raywenderlich.com/97014/use-cocoapods-with-swift
Close your xcode after pod install, and open the .xcworkspace file generated by Cocoapods.
I have just started a new Swift project and I would like to use different libraries. In particular, I would like to use Realm.io, an Obj-C library. But, I would also like to use pure Swift libraries such as Alamofire or Dollar.
I use Cocoapods for managing my dependencies. I use the latest version (0.37.0) and the new use_frameworks! flag. pod install is successful anytime.
Unfortunately, when I try to build my project I get two errors (for my main target):
Umbrella header Realm.h not found from module.modulemap
Could not build Objective-C module Realm from any file using import Realm
Other imports work fine.
I have noticed the following: if I remove pure Swift libs and use_frameworks, everything works fine. I am aware about this current issue from Cocoapods. However, it should not be a problem for Realm asks developers to use that flag.
Here is my Podfile:
platform :ios, '8.0'
use_frameworks!
target 'rothrock' do
pod 'Realm'
pod 'Cent'
pod 'SwiftyJSON'
pod 'Alamofire'
end
target 'rothrockTests', :exclusive => true do
end
I use no bridging header. Should I?
Any idea or workaround?
Alright, here is the full walkthrough:
Install dependencies using Cocoapods and the use_frameworks! flag.
As you need to use a Objective-C dependency, create a Bridging header. You can create one easily by importing an Objective-C class to your Swift project, than remove it (the wizard should ask you if need a bridging header). Otherwise, create a new header file. Then, navigate to your target configuration and enter the name of your file in Swift Compiler - Code Generation > Objective-C Bridging header.
Still in your target configuration, add a new entry in Search Paths > User Header Search Paths: Pods as value and flag it as recursive.
Remove any import instruction from your code, relative to your Objective-C library.
Build your project. You should have a success.
You need a bridging header and import your Objective-C library headers there.
If you are using only Realm you can check out this documentation for Swift http://realm.io/docs/cocoa/ (go to CocoaPods down in the tabs)
Swift
Install CocoaPods 0.36.0 or later ([sudo] gem install cocoapods).
In your Podfile, add use_frameworks! and pod 'Realm' to your app target.
From the command line, run pod install.
Use the .xcworkspace file generated by CocoaPods to work on your project!
Download the latest release of Realm and extract the zip.
Drag the file at Swift/RLMSupport.swift into the File Navigator of your Xcode project, checking the Copy items if needed checkbox.
I just installed the Realm library in a project I have with some of the libraries you mention above like Alamofire and SwiftyJSON and others and it works fine when you build the project and even put the import Realm, no compilation errors at all.
I'm using Cocoapods 0.36.0, the stable version and this is my PodFile :
source 'https://github.com/CocoaPods/Specs.git'
use_frameworks!
platform :ios, '8.0'
link_with 'ApiWorkflow', 'ApiWorkflowTests'
pod 'SwiftyJSON', '~> 2.2'
pod 'Alamofire', '~> 1.2'
pod 'Typhoon', '~> 3.0'
pod 'SwiftCSV', '~> 0.1'
pod 'Realm'
I hope this help you