[BUG] Azure Communication Calling iOS SDK version 2.2.0 crashes on start call function

[ashishpatill]

Describe the bug
I am trying to start a one on one call using Azure CommunicationCalling sdk for iOS. I am getting a crash inside one of the sdk functions as shown in screenshot for backtrace below.

Exception or Stack Trace
Exception:- *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[__NSArrayM insertObject:atIndex:]: object cannot be nil'
terminating with uncaught exception of type NSException

Stack Trace:-
Thread#0 0x00000001d70a6248 in __exceptionPreprocess ()
#1 0x00000001d0473a68 in objc_exception_throw ()
#2 0x00000001d724a6d4 in _CFThrowFormattedException ()
#3 0x00000001d72475cc in -[__NSArrayM insertObject:atIndex:].cold.1 ()
#4 0x00000001d70b0350 in -[__NSArrayM insertObject:atIndex:] ()
#5 0x000000010699cfe4 in -[ACSIdentifiers toMRIs:] ()
#6 0x000000010697b044 in -[ACSCallAgent startCall:options:withCompletionHandler:] ()
#7 0x0000000102500648 in CallManager.startCall(callee:successHandler:)

I have verified that call agent and communication identifier arr obj passed is not nil.

To Reproduce
Steps to reproduce the behavior:
simply getting a crash on execute the start call function.

Code Snippet
Code for start call:-

func startCall(callee: String, successHandler: @escaping (Call?) -> Void ) {
    // start call logic
    debugPrint(callee)
    let callees:[CommunicationIdentifier] = [CommunicationUserIdentifier(callee)]
    debugPrint(callees)
    self.callAgent?.startCall(participants: callees, options: StartCallOptions()) { (call, error) in
        if let error = error {
            debugPrint(error.localizedDescription)
            successHandler(nil)
        } else {
            self.call = call
            debugPrint("call placed successfully")
            successHandler(call)
        }
    }
}

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots
If applicable, add screenshots to help explain your problem.

Setup (please complete the following information):

• OS: iOS 16.0.3
• IDE : Xcode 14.0.1
• Azure Communication Calling Version:- 2.2.0

Additional context
I have verified that call agent and communication identifier arr obj passed is not nil.

"8:acs:c95f80a2......"
[<AzureCommunicationCommon.CommunicationUserIdentifier: 0x28323a580>]

[tjprescott]

@ashishpatill thanks for the report. @raosanat can you please take a look?

[lucianopa-msft]

We are looking into these old bugs and closing, can you please try with latest version and if still reproducible, feel free to reopen.