MTOUCH : error MT3001: Could not AOT the assembly - How do I resolve?

[IDispose]

Targeting .Net Standard 2.0
Trying to use the latest Beta of the Plugins in a Xamarin Forms project.

Running into this issue when I try to compile in release mode.

MTOUCH : warning MT3005: The dependency 'Plugin.Iconize.iOS, Version=1.5.0.13, Culture=neutral, PublicKeyToken=null' of the assembly 'FormsPlugin.Iconize.iOS, Version=1.5.0.13, Culture=neutral, PublicKeyToken=null' was not found. Please review the project's references.

MTOUCH : warning MT3006: Could not compute a complete dependency map for the project. This will result in slower build times because Xamarin.iOS can't properly detect what needs to be rebuilt (and what does not need to be rebuilt). Please review previous warnings for more details.

MTOUCH : warning MT3005: The dependency 'Plugin.Iconize.iOS, Version=1.5.0.13, Culture=neutral, PublicKeyToken=null' of the assembly 'FormsPlugin.Iconize.iOS, Version=1.5.0.13, Culture=neutral, PublicKeyToken=null' was not found. Please review the project's references.

MTOUCH : warning MT3006: Could not compute a complete dependency map for the project. This will result in slower build times because Xamarin.iOS can't properly detect what needs to be rebuilt (and what does not need to be rebuilt). Please review previous warnings for more details.

MTOUCH : warning : The runtime version supported by this application is unavailable.
MTOUCH : warning : The runtime version supported by this application is unavailable.

MTOUCH : error MT3001: Could not AOT the assembly

What's the deal with Plugin.Iconize.iOS references? I think the warnings lead to the AOT error.

Any help highly appreciated.