Undeclared selector 'startCustomAuthentication_v2'

[idrougge]

Describe the bug
AWSCognito leaks warnings into Xcode build log.

To Reproduce

1. Install AWSCognitoIdentityProvider (2.14.0)
2. Build.

Observed Behavior
Several semantic issues reported in cmd-5 pane in Xcode and CI build logs, most of them about Undeclared selector 'startCustomAuthentication_v2'.
There is also a warning about Unused variable 'userAttributes'.

Expected Behavior
No build warnings should surface from such a common dependency.

Areas of the SDK you are using (AWSMobileClient, Cognito, Pinpoint, IoT, etc)?
AWSCognitoIdentityProvider

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

Environment(please complete the following information):

• SDK Version: 2.14.0
• Dependency Manager: Cocoapods
• Swift Version : 5.2
• Xcode Version: 11.5

Device Information (please complete the following information):

• Device: Simulator
• iOS Version: iOS 13
• Specific to simulators: No

[idrougge]

This is still present in SDK 2.15.2. It prevents building with "treat warnings as errors" enabled and diverts attention from issues in one's own source code.

[idrougge]

Now there is also a deprecation warning leaking:
AWSCognitoIdentityUser.m:1157:33: 'getMultiFactorAuthenticationCode:mfaCodeCompletionSource:' is deprecated: Use getMultiFactorAuthenticationCode_v2:mfaCodeCompletionSource: instead

[github-actions]

This issue is stale because it has been open for 14 days with no activity. Please, provide an update or it will be automatically closed in 7 days.

[idrougge]

I would appreciate a followup from AWS here.

[github-actions]

This issue is stale because it has been open for 14 days with no activity. Please, provide an update or it will be automatically closed in 7 days.

[idrougge]

I would appreciate a followup from AWS here.

[akrant06]

@lawmicha - Do we have any update here? this issue still persist in latest version of aws sdk/

[lawmicha]

Sorry for the confusion, unassigning myself to make sure this gets picked up by someone on the team working on this category of issues. This issue appears to be triaged and pending actual assignee

[atierian]

Thanks for opening this issue. We don't plan on addressing all benign warnings within the AWS SDK for iOS at this time.