Crash in connectToABTestDesigner

[mlostekk]

Integration Method: Manual
Xcode Version: Version 13.1 (13A1030d)
Library Version: 3.9.1
Platform: iOS
Language: Swift & Objective-C
Description:
When trying to open the A/B Test designer, the app crashes with the following log.

2021-12-02 08:56:34.060399+0100 Skoove Debug[7287:771336] +[MPSwizzler swizzleSelector:onClass:withBlock:named:async:]: unrecognized selector sent to class 0x100daaf68
2021-12-02 08:56:34.072759+0100 Skoove Debug[7287:771336] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '+[MPSwizzler swizzleSelector:onClass:withBlock:named:async:]: unrecognized selector sent to class 0x100daaf68'
*** First throw call stack:
(0x181db204c 0x19a426f54 0x181e8ef44 0x181d47474 0x181d465b0 0x102845a58 0x100d52340 0x100d34b1c 0x100d73580 0x106fcc6d4 0x106fce3b4 0x106fde898 0x181d6acd4 0x181d24eac 0x181d383b8 0x19d6c838c 0x1846d86a8 0x1844577f4 0x100790efc 0x100e79a24)
libc++abi: terminating with uncaught exception of type NSException
dyld4 config: DYLD_LIBRARY_PATH=/usr/lib/system/introspection DYLD_INSERT_LIBRARIES=/Developer/usr/lib/libBacktraceRecording.dylib:/Developer/usr/lib/libMainThreadChecker.dylib:/Developer/Library/PrivateFrameworks/DTDDISupport.framework/libViewDebuggerSupport.dylib
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '+[MPSwizzler swizzleSelector:onClass:withBlock:named:async:]: unrecognized selector sent to class 0x100daaf68'
terminating with uncaught exception of type NSException

Here is the stacktrace:

The interesting thing is that its crashing in the FBSDKSwizzler. We are using a react native app and have recently upgraded the FBSDK to the latest version. That might be relevant

Expected Behavior:
The A/B Test designer should open without a crash and allow for configuring an AB Test

[zihejia]

Hi @mlostekk , on Jan 1, 2022, we’ll remove the Messages & Experiments feature from Mixpanel(more details), please contact our support if you need to continue the conversation. Sorry for the inconvenience.