"dyld[5943]: Library not loaded: @rpath/FBSDKCoreKit_Basics.framework/FBSDKCoreKit_Basics" after upgrading facebook ios from 16.3.1 to 17.0.0

[thisisthekap]

Description

After upgrading the facebook ios binding to using version 17.0.0 of the facebook ios sdk, I see this error when deploying to simulator:

dyld[5943]: Library not loaded: @rpath/FBSDKCoreKit_Basics.framework/FBSDKCoreKit_Basics
  Referenced from: <45C9D1C1-F755-3F48-AF8B-624323C05A62> /Users/user/Library/Developer/CoreSimulator/Devices/613F9FED-F84A-4C67-83E9-D1BFAC9BE856/data/Containers/Bundle/Application/1559B00C-D84B-4F6D-955E-E38337994111/Sample.app/Frameworks/MauiFacebook.framework/MauiFacebook
  Reason: tried: '/Library/Developer/CoreSimulator/Volumes/iOS_22E238/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS 18.4.simruntime/Contents/Resources/RuntimeRoot/usr/lib/swift/FBSDKCoreKit_Basics.framework/FBSDKCoreKit_Basics' (no such file), '/usr/lib/swift/FBSDKCoreKit_Basics.framework/FBSDKCoreKit_Basics' (no such file, not in dyld cache), '/Users/user/Library/Developer/CoreSimulator/Devices/613F9FED-F84A-4C67-83E9-D1BFAC9BE856/data/Containers/Bundle/Application/1559B00C-D84B-4F6D-955E-E38337994111/Sample.app/Frameworks/FBSDKCoreKit_Basics.framework/FBSDKCoreKit_Basics' (no such file), '/Users/user/Library/Developer/CoreSimulator/Devices/613F9FED-F84A-4C67-83E9-D1BFAC9BE856/data/Containers/Bundle/Application/1559B00C-D84B-4F6D-955E-E38337994111/Sample.app/Frameworks/MauiFacebook.framework/Frameworks/FBSDKCoreKit_Basics.framework/FBSDKCoreKit_Basics' (no such file), '/Users/user/Library/Developer/CoreSimulator/Devices/613F9FED-F84A-4C67-83E9-D1BFAC9BE856/data/Containers/Bundle/Application/1559B00C-D84B-4F6D-955E-E38337994111/Sample.app/FBSDKCoreKit_Basics.framework/FBSDKCoreKit_Basics' (no such file), '/Users/user/Library/Developer/CoreSimulator/Devices/613F9FED-F84A-4C67-83E9-D1BFAC9BE856/data/Containers/Bundle/Application/1559B00C-D84B-4F6D-955E-E38337994111/Sample.app/Frameworks/FBSDKCoreKit_Basics.framework/FBSDKCoreKit_Basics' (no such file), '/Users/user/Library/Developer/CoreSimulator/Devices/613F9FED-F84A-4C67-83E9-D1BFAC9BE856/data/Containers/Bundle/Application/1559B00C-D84B-4F6D-955E-E38337994111/Sample.app/FBSDKCoreKit_Basics.framework/FBSDKCoreKit_Basics' (no such file), '/Users/user/Library/Developer/CoreSimulator/Devices/613F9FED-F84A-4C67-83E9-D1BFAC9BE856/data/Containers/Bundle/Application/1559B00C-D84B-4F6D-955E-E38337994111/Sample.app/Frameworks/FBSDKCoreKit_Basics.framework/FBSDKCoreKit_Basics' (no such file), '/Library/Developer/CoreSimulator/Volumes/iOS_22E238/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS 18.4.simruntime/Contents/Resources/RuntimeRoot/System/Library/Frameworks/FBSDKCoreKit_Basics.framework/FBSDKCoreKit_Basics' (no such file)

Steps to Reproduce

1. git clone https://github.com/CommunityToolkit/Maui.NativeLibraryInterop
2. Deploy facebook ios example to ios simulator --> working
3. Change the referenced facebook sdk version in xcode to 17.0.0
4. Deploy facebook ios example to ios simulator --> error as given above

Link to public reproduction project repository

No response

Environment

• OS: macOS 15.4.1 (24E263)
• .NET MAUI: The version used by the example in this repository.
• Target platforms: .net9.0-ios

[thisisthekap]

I assume that this might be caused by this change in the facebook ios sdk:

Source: facebook/facebook-ios-sdk@v16.3.1...v17.0.0#diff-f913940c58e8744a2af1c68b909bb6383e49007e6c5a12fb03104a9006ae677eR134

Unfortunately, I am not able to provide additional insights on root cause or possible solutions.

[thisisthekap]

One more thing: This issue still remains when attempting to update to facebook ios sdk 18.0.0. Once I changed back to 16.3.1, everything is fine again.

[thisisthekap]

@pjcollins @dalexsoto Any thoughts on this?

[thisisthekap]

@Redth Thank you for creating the initial version of this sample! Do you have any suggestion how I could solve this?

Edit: Fixed typo.

[thisisthekap]

@pjcollins @dalexsoto @Redth @jfversluis As we are stuck with this issue: Can anyone provide some input on that one?

[thisisthekap]

@jfversluis I retried using the latest dotnet sdk with latest nuget versions. Issue remains.

[thisisthekap]

@jfversluis @davidortinau This issue is preventing us from submiting an app to the app store. We created it before approximately 1,5 month. Are you able to elevate the priority of this issue?

[jfversluis]

I'm no expert here, but I've asked around. It seems to be something like this.

It looks like the new Facebook SDK version now depends on a newly introduced framework. Maybe they divided something up or took a new dependency? And the bindings don't include that new framework and hence it can't be found at runtime.

Not sure if that helps at all. I hope so!

[thisisthekap]

@jfversluis Thank you for your answer.

You are right, they introduced "AppTrackingTransparency" as a dependency.

I tried to add it in xcode, but without success (same error):

[thisisthekap]

@rolfbjarne Is this something you can help with?

[rolfbjarne]

You are right, they introduced "AppTrackingTransparency" as a dependency.

The error message complains about "FBSDKCoreKit_Basics.framework", not "AppTrackingTransparency"

[thisisthekap]

The resulting nuget after the upgrade is way smaller compared to the previous (working) one. This brings me to the assumption that the needed framework folder is for whatever reason not added to the nuget during build.

@rolfbjarne Do you think that the change mentioned in #96 (comment) could be causing this issue?

[rolfbjarne]

@thisisthekap I have no idea what might be the reason for the size difference, that would require investigating exactly what's different inside the nugets (they're just zip files, so they're easy to inspect).

[thisisthekap]

@rolfbjarne You are right. Here the results of a comparison I did:

[rolfbjarne]

Looks like the xcframework itself is much smaller, so it makes sense for the nuget to be smaller as well.