Module compiled with swift 4.0 cannot be imported in swift 3.1 — Carthage - swift

I wanted to test my app using Xcode 9 beta. Now I am back to Xcode 8 and I have the following error:
Module compiled with swift 4.0 cannot be imported in swift 3.1
To solve this error I refresh all Carthage build and made some cleaning:
removed all Carthage build and checkout
removed Derived Data directory
cleaned the project
run carthage update
But the error still here.
Carthage
The command used is: 'carthage update --platform iOS'
As the problem lie on always the same framework, DeviceKit I then manage to remove it from Cartfile.
Project build then show errors as DeviceKit is not found.
I then re-add it to Cartfile and run carthage update DeviceKit --platform iOS --no-use-binaries
And the error re-appear.
This related question bring answer but for Cocoapods: Module compiled with swift 4.0 cannot be imported in swift 3.1


Solved by the following steps:
delete some Derived Data for Carthage: rm -rf ~/Library/Caches/org.carthage.CarthageKit/DerivedData
delete the Carthage folder for your project
Update Carthage: carthage update --platform iOS
I found the answer on the dedicated Carthage' page on GitHub: https://github.com/Carthage/Carthage/issues/2062

Related

Cannot find interface declaration error Xcode 10.2 after Carthage update

I have updated the carthage after updated myxcode to 10.2 , And the Carthage framework class is not found alert I am getting .
Cannot find interface declaration for 'ChartMarkerImage', superclass
of 'BalloonMarker' ?
My project swift version was 4.0 still.
But the file is available in Carthage framework .
What was went wrong here ?
What i tried is
Set toolchain to SWIFT_4_2 but no luck.
Added #import <chart/chart.h> in pch file still getting error.

It's Carthage issue. The fixed release will soon available
UPD: Version 0.33.0 https://github.com/Carthage/Carthage/releases/tag/0.33.0

Update your carthage version to 0.33.0 from either of the below option
download pkg file from link
update carthage by homebrew
after updating use "carthage update --platform ios" command

How to update the version of compiled framework

I am using XCode 8.3 and I am trying to Run my project which is connected with link and now I have a XCode Error: Module compiled with Swift 3.0.2 cannot be imported in Swift 3.1
So my question is how to update the version of the framework?
I downloaded this framework from the link that I've posted above.

I think that you need to update CocoaPods to a newer version supports XCode 8 (CocoaPods 1.1.0 or newer):
sudo gem install cocoapods
Then do a pod update to fix your dependencies that are not linking:
pod update
Delete the DerivedData folder for your project and rebuild, the link error should be gone.

Swift/Carthage - Can I get it to compile to different version?

I have both Xcode 7.3.1 and Xcode 8.2.1 installed, as I'm taking over a project that was compiled with Xcode 7.3. Carthage is being used to pull in RealmSwift, but it's compiling it to Swift 3 and I'm getting the error:
"Module file was created by a newer version of the compiler"
I tried using the following command, but I believe it's still compiling (locally) to Swift 3.
carthage update --platform iOS --no-use-binaries
Is it possible to pull in 3rd party frameworks and compile them to Swift 2?

Module compiled with Swift 3.0.1 cannot be imported in Swift 3.0 on BuddyBuild

I use BuddyBuild for a swift project with Xcode 8.0 and with Carthage 0.18.
Although, in logs I can see that all frameworks are cloning, checking out and building, I receive this one:
module compiled with Swift 3.0.1 cannot be imported in Swift 3.0: /tmp/sandbox/workspace/Carthage/Build/iOS/RealmSwift.framework/Modules/RealmSwift.swiftmodule/x86_64.swiftmodule
This is the entry in Cartfile for Realm:
github "realm/realm-cocoa"
Locally, everything builds, but with other configurations:
Xcode 8.1 and Carthage 0.18
This Module compiled with swift 3.0 cannot be imported in Swift 3.0.1 did not help me much, because of BuddyBuild.
EDIT
I can see that in logs:
Downloading realm-cocoa.framework binary at "v2.1.0"
after that, no building for realm.

Buddybuild typically run the carthage command with --no-build to make sure you don't experience with kind of error.
Note that buddybuild won't run the carthage command if you check in your Carthage/ folder.
You can find more information about how buddybuild deals with Carthage in our documentation.

Module compiled with swift 3.0 cannot be imported in Swift 3.0.1

I upgraded Xcode to 8.1 GM and am now getting the below error for SwiftyJSON. Other imported frameworks seem to work. Is there a way to force this to work in Swift 3 until SwiftyJSON upgrades their framework? I used Carthage to import/update frameworks. I also tried changing Use Legacy Swift language version On and Off to no avail.
Module compiled with Swift 3.0 cannot be imported in Swift 3.0.1:
Modules/SwiftyJSON.swiftmodule/arm64.swiftmodule

SwiftyJson is being downloaded precompiled by carthage. The precompiled download is with Swift Version 3.0. That makes the compiler complain that the version is not correct. Using the following command:
carthage update --platform iOS --no-use-binaries
SwiftyJson (and all other frameworks within Carthage) will be compiled locally using the local version of Swift (3.0.1) and the compiler will not complain anymore.

Remove the app chache from DerivedData, and rebuild. the error may be fixed.
The DerivedData path like this:
~/Library/Developer/Xcode/DerivedData/

Make sure you've placed the new XCode 8.1 GM package in your Applications folder. We ran into this issue when one of us was running Carthage to update our dependencies, but had not replaced the XCode old 8.0 application in the applications folder (8.1 GM was running off the Desktop).
You want to make sure that when you run the following in terminal: xcrun swift -version that it returns Apple Swift version 3.0.1.

Updating default Xcode to new one on terminal worked for me.
Step 1 : Use following command to update Xcode version to latest on Terminal. Ref
sudo xcode-select -switch <path/to/>Xcode.app
Step 2 : Now try carthage update command
carthage update --platform iOS

Just to give the latest updates:
Carthage has released version 0.20 on Feb 27, 2017.
Carthage now only uses the pre-build binary if available pre-build binary is compatible.
That is being said, you no longer have to use: --no-use-binaries to avoid incompatible pre-build framework.
So make sure that you have carthage version greater than 0.20 and simply do:
carthage update --platform iOS

Just like #zirinisp said:
You can Using the following command:carthage update --platform iOS --no-use-binaries
Using the following command:xcrun swift -version to see the Swift version
Do this: Xcode->preferences->locations to clear the derived data and archives data, the most important to change the command line tools to "Xcode 8.1"
Using the following command:xcrun swift -version,you can see the swift version is 3.0.1
Set Use Legacy Swift Language Version = NO
I hope it will help you

Move the beta/GM version if the Xcode to /Applications folder and name it Xcode-beta
Check the output of:
xcrun swift --version
by running this command in terminal, its output should match with the swift version you want the app to compile, because Carthage uses output of this command, to determine the local Swift version.
Update Xcode version to latest on Terminal by running following command:
sudo xcode-select -s /Applications/Xcode-beta.app/
Build the libraries for iOS and prevents Carthage from downloading existing (yet incompatible) precompiled binaries, by running following command:
carthage update --platform iOS --no-use-binaries
Clean & Build

I had exactly the same issue with the library XCTest_Gherkin, what it worked for me was:
Product -> Scheme -> XCTest-Gherkin
Product -> Build
Hope it helps. I am using Cocoapods.

In Xcode Build Settings make sure your Framework Search Paths contain the appropriate Carthage Build folder:
$(inherited)
$(PROJECT_DIR)/Carthage/Build/iOS