Carthage Build Failed

半世苍凉 提交于 2020-08-21 06:44:44

问题


I ran carthage bootstrap --platform iOS and got "Skipped installing realm-cocoa.framework binary due to the error: Incompatible Swift version - framework was built with 3.1 and the local version is 4.0", and then at the end of the build I got a full on "Build Failed: Task failed with exit code 65" error.

It points me to the derivedDataPath, and I checked the xcodebuild log for more details where it let me know "PhaseScriptExecution Download\ Core\ and\ Sync /Users/user/Libary/Caches/org.carthage.CarthageKit/DerivedData/9.0_9A###/realm-cocoa/v2.10.2/Build/Intermediates.noindex/Realm.build/Release-iphoneos/Realm.build/Script-X#X#X#X#X.sh (1 failure)".

But I'm still not totally sure what exactly is happening with Realm Cocoa, or how to fix, do you know?


回答1:


TL;DR: Ensure you're using the latest Swift version, included with Xcode, and then perform carthage bootstrap --no-use-binaries --platform iOS --cache-builds

Long version:

The error you got from Xcode while building your project, Incompatible Swift version - framework was built with 3.1 and the local version is 4.0, is due to a download performed by Carthage to get a pre-built version of Realm Framework (this is a time-saver feature but sometimes there are version incompatibilities like this one).

This downloaded pre-built framework was compiled with a previous version of Swift (in this case the error is pointing v3.1 was used.) The solution for this error will be to perform the dependencies installation process using a different command:

carthage bootstrap --platform iOS --no-use-binaries

This will work for the project dependencies build to succeed. Anyway this might take a long time since it will build from scratch the Realm.framework and RealmSwift.framework from the core every time the command is executed. So it is possible to enable a local cache for the builds on Carthage. The dependencies can be installed with

carthage bootstrap --no-use-binaries --platform iOS --cache-builds

With this options Carthage will:

  • bootstrap, so the versions in the Cartfile.resolved will be used, no updates.
  • --no-use-binaries build the dependencies with no downloads of pre-built frameworks (avoiding the version incompatibility.)
  • --platform iOS will build the dependencies for be used only on iOS, avoiding building frameworks for Apple TV or Mac OS in case the dependency supports it. This will cut a lot of time!
  • --cache-builds will enable Carthage to store your built dependencies (and use it when re-needed) on a local cache, so even if you perform the command again it will just copy your stored framework, avoiding another time consuming build process.



回答2:


Check your application folder and Switch your Xcode version to older version with swift 3.

sudo xcode-select --switch /Applications/Xcode.app


来源:https://stackoverflow.com/questions/46835129/carthage-build-failed

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