Hi Team,
I am using Xcode 9.3 and added this lib using pod. When I tried to build, found warnings, PFA error screen shot showing warnings.
Could you please resolve this? Is there any Swift 4.x specific branch is available?

Same here looks like this project isn't being maintained anymore.
I've fixed this in our fork, but unfortunately, my change is basically removing a whole support for serialization of implicitly unwrapped members. I think that this is the only possible solution how to fix that warnings. It's quick and dirty change, but we're already going to remove ObjectMapper from our projects, so it doesn't bother us so much.
Thank you, this helps 馃憤
This is a duplicate issue of https://github.com/Hearst-DD/ObjectMapper/issues/961
FYI this a compile error in Xcode 10 beta 1 (and it's new build system)

I can see a PR pending for the above issue:
Is there any timeline to be getting a fix in for this? I would like to be moving forward using Xcode 10 to prep for iOS 12, however, this is making it so I cannot even compile our main app. Thanks in advance!
News?
Warnings in Xcode Xcode 9.3 and 9.4 will remain due to the fact that the behavior of IUO is not the same as Xcode 10 and as a result compilation fails in test targets.
Most helpful comment
Is there any timeline to be getting a fix in for this? I would like to be moving forward using Xcode 10 to prep for iOS 12, however, this is making it so I cannot even compile our main app. Thanks in advance!