I'm using
newest OpenXSDKframework (debug)
included in embedded Binaries
Build Settings: Embedded Content Contains Swift Code YES
Other linker -Objc
XCode 7.31
swift
when import OpenXSDKCore
this error is showing
.../ViewController/OpenXBannerViewController.swift:11:8: Module file
was created by an older version of the compiler;
rebuild 'OpenXSDKCore' and try again:
.../OpenXSDKCore.framework/Modules/OpenXSDKCore.swiftmodule/i386.swiftmodule
is this related to the Framework producing Company ?
what should i do - to fix that error?
thanks
That error will occur if the compiled framework (binary) was compiled using earlier version of compiler and in the most of the iOS cases it means that the binary was compiled using some earlier versions of Xcode.
Most probably, your OpenXSDKCore was not built using Xcode 7.3 that you use. The best course of action would be downloading the framework source code and compiling it by yourself.
If you don't have that option you can only wait or downgrade to earlier Xcode version.
Related
I'm building a Swift static library with:
Xcode 13.2 (Swift compiler 5.5.2)
iOS Deployment target 12.0
Build library for distribution YES
Skip install NO
Swift language version 5 and tried with 4.2
Dependency managed with CocoaPods:
Japx 3.0.0
Alamofire 5.2.2
RxSwift
When I try to add it to an iOS project with this setup:
Xcode 13.3 (Swift compiler 5.6)
iOS Deployment target 12.0
Swift language version 5 and tried with 4.2
and build I get this error:
Failed to build module 'LibraryX'; this SDK is not supported by the compiler (the SDK is built with 'Apple Swift version 5.5.2 effective-4.2 (swiftlang-1300.0.47.5 clang-1300.0.29.30)', while this compiler is 'Apple Swift version 5.6 effective-4.2 (swiftlang-5.6.0.323.62 clang-1316.0.20.8)'). Please select a toolchain which matches the SDK.
These are the headers in the .swiftinterface
// swift-interface-format-version: 1.0
// swift-compiler-version: Apple Swift version 5.5.2 effective-4.2 (swiftlang-1300.0.47.5 clang-1300.0.29.30)
// swift-module-flags: -target arm64-apple-ios12.0 -enable-objc-interop -enable-library-evolution -swift-version 4.2 -enforce-exclusivity=checked -Onone -module-name LibraryX
Obviously if I build the project with the same compiler version or building the library with the iOS project everything works fine. But the purpose here is to release a precompiled library and not its source code.
Every time that I lookup this error online I've found "You have to set Build library for distribution to Yes"
I tried to add the source code of the static library to a new Framework project, but I get the same result.
I also had this error, in my case it was unable to import a sub-dependency of my XCFramework during reading .swiftinterface file, however was showing this absolutely misleading error.
After repeatedly cleaning up DerivedData and trying different Xcode versions (13.0, 13.4.1) I've seen 2 errors: "this SDK is not supported by the compiler", and "No module named 'AnotherLib'" which was an incorrectly specified dependency inside of my Swift Package.
So, maybe only first part of the message is correct "Failed to build module 'LibraryX'", but the reason is something else, NOT the difference in compiler versions.
I'm facing the issue with distributing compiled swift framework. My framework heavily relies on the libxml2 dynamic library. In order to avoid issues with Swift module compatibility, I've set build flag BUILD_LIBRARY_FOR_DISTRIBUTION = YES.
So I've used Xcode 11.3 Swift v5.1.3 to build my framework. I've integrated it into the Demo.app project. As being expected Demo.app works fine in Xcode 11.3.
However, I have another error trying to build Demo.app in Xcode 11.0 Swift 5.1.
I've got the error:
#import "libxml/HTMLparser.h"
^
/Applications/Xcode_11.0.app/Contents/Developer/Platforms/AppleTVSimulator.platform/Developer/SDKs/AppleTVSimulator13.0.sdk/usr/include/libxml2/libxml/HTMLparser.h:15:10: error: 'libxml/xmlversion.h' file not found
#include <libxml/xmlversion.h>
^
/.../DemoApp/ThirdParty/testXML.framework/Modules/testXML.swiftmodule/x86_64-apple-tvos-simulator.swiftinterface:6:8: error: could not build Objective-C module 'libxml2'
import libxml2
^
/.../DemoApp/AppDelegate.swift:11:8: error: failed to load module 'testXML'
import testXML
Here is the repo with both framework and app projects.
I'm using both Xcode version on the same Mac.
Your project runs fine on my Xcode 11.3 tvOS simulator. However there's something I've noticed.
The framework you built only contains x86_64 architectures (simulator only), it won't work on physical devices.
For Xcode before 11.3 it seems like you need to add $(SDKROOT)/usr/include/libxml2 and ${SRCROOT}/libxml2 to Build Settings. That fixed the issue for me on Xcode 11.2.1
After I updated my App to Swift 4 I get this error message:
error: The following binaries use incompatible versions of Swift:
/Users/Konrad/Library/Developer/Xcode/DerivedData/ExploreYourCity-btthjezgywzvnmduiurzwgwzrven/Build/Products/Debug-iphoneos/Cosmos/Cosmos.framework/Cosmos
/Users/Konrad/Library/Developer/Xcode/DerivedData/ExploreYourCity-btthjezgywzvnmduiurzwgwzrven/Build/Products/Debug-iphonesimulator/ExploreYourCity.app/ExploreYourCity
I can not find a solution to this misstake. Whats wrong?
Library setup method: CocoaPods
Version of the library. Example: 12.0.1.
Xcode version. Example:9.0.1.
OS version. Example: iOS 11.0.
*Swift Version: Swift 4.0.
1) Select Project in Project Navigator.
2) Go to General Tab.
3) Remove everything under Embedded Binaries.
4) Remove everything under Linked Frameworks and Libraries except Pods_*.framework
5) Clean, Build and Run.
Some time after upgrading to Xcode 9, I discovered that I was no longer able to build a Kitura-based project with the Swift 3.1.1 snapshot (which I have installed via swiftenv).
When I ran swift build, some time into the build I would get:
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.13.sdk/System/Library/Frameworks/Foundation.framework/Headers/Foundation.apinotes:8:28: error: unknown key 'SwiftImportAsNonGeneric'
SwiftImportAsNonGeneric: true
^
<unknown>:0: error: could not build Objective-C module 'Foundation'
It seems that there is a dependency between Swift and Xcode, and Xcode 9 is no longer fully compatible with Swift 3.1.1 (or earlier) snapshots. I believe it may be because my project uses Foundation, and Foundation on Mac is provided as part of Xcode, whereas on Linux it is part of the Swift snapshot (via swift-corelibs-foundation).
I did find a solution to this problem: If I keep a copy of Xcode 8.3.3 around (eg. in /Applications/Xcode8.3.3.app) then I can use sudo xcode-select -s /Applications/Xcode<version>.app/Contents/Developer to select the appropriate one prior to building with SPM, and I can then build both Swift 3.1.1 and 4.0 projects on the same system.
However, this feels a bit clunky. Each time I build a project with the 'other' Swift version, I have to make sure I run xcode-select, or the build will fail. Is having multiple versions of Xcode the right solution in this case, or am I missing a trick with Xcode 9?
note that if, like me, you upgraded Xcode via the App Store, previous versions of Xcode are still available from https://developer.apple.com/download/more/
I recently added a static library (mobclix) to my iPhone project which required me to set the Base SDK to 3.0. This library is claimed to be compatible with 2.2 and so far it looks like it's true. I set the project's Deployment Target to 2.2. No problems there.
Now, I am also using libxml2 in this same project. Apparently, the libxml2.2.dylib in OS 3.0 is newer than in OS 2.X (version 10 and 9 respectively). However, my code that uses libxml2, was already compatible with the libxml2 version included with OS 2.X. Since I needed to set the Base SDK to 3.0, the "compatibility version" / minimum version requirement / dependency is automatically set to the newer version of libxml2. When I try to run the app in OS 2, I get this runtime error (obviously):
Dyld Error Message:
Library not loaded: /usr/lib/libxml2.2.dylib
Referenced from: /Users/Martijn/Library/Application Support/iPhone Simulator/User/Applications/4D5456DE-F297-4DF4-ACA6-DA8BBBBBA914/Luisterpaal.app/Luisterpaal
Reason: Incompatible library version: Luisterpaal requires version 10.0.0 or later, but libxml2.2.dylib provides version 9.0.0
Is it possible to override the version requirement somewhere?
Or other ideas to solve this issue?
The compatibility version is set according to the version embedded in the dylib of the current SDK during build. I have not found a way to change or override this.
However, in the target in Xcode under the "Link with binary with libraries" branch there is an option to link a dylib "weakly". This skips version checking at the time of loading the dylib (runtime). It's your responsibility then to only make calls to existing functions. Making calls to non-existent functions will crash the application.
Apparently there was a change with SDK 3.0 that broke compatibility with libxml. Apple have posted about it here:
http://developer.apple.com/iphone/library/qa/qa2009/qa1659.html