AutoMapper exception with Linker Behavior = Link Framework SDKs Only

I am using AutoMapper in my app, which works great In Debug mode on my phone, with Linker Behavior = Don't Link.
However, in the AppStore configuration, where the Linker Behavior = Link Framework SDKs Only.

The exception I get is this:

Mapper not initialized. Call Initialize with appropriate configuration. If you are trying to use mapper instances through a container or otherwise, make sure you do not have any calls to the static Mapper.Map methods, and if you're using ProjectTo or UseAsDataSource extension methods, make sure you pass in the appropriate IConfigurationProvider instance.

When I call this:
var user = AutoMapper.Mapper.Map<User>(userDTO);

Is there a workaround? I should not use Don't Link in production, but I don't know how else to fix this.
I am sure I am not the only one using AutoMapper in a XF app?

Thanks!