MAUI- net7.0 Publish ios app does not work

[ov33700]

Hi all, and thank you for my first time at github
I have almost completed my project which is a ios/android app written under maui net7.0. I really enjoyed writting it, but now is the hard time : publish.
whatever i do i get 2 error messages
1 : "Cannot execute process on server XMA IL Trimmer has encountered an unexpected error. Please report the issue at github...
Unable to create file "obj\ARM64\Release\net7.0-ios\ios_arm64\linked\Link.semaphore. unable to find part of the path ...obj\ARM64\Release\net7.0-ios\ios_arm64\linked\Link.semaphore"

2 : Xamarin.Shared.targets(532,3): error MSB4044: Task "CompileAppManifest" was not assigned value for required "DefaultSdkVersion".

My windows computer is properly coupled to the MAC,
apple credentials are OK,
I can run my app on the MAC simulator,
I can run my app on an IPhone (connected to the MAC)
I followed several times Gerald Versluis (great Man, thanks) tutos on the sbject
thus i think that everything if OK, or at least i don't what wrong could be left.

Many thanks in advance for any suggestion or share

[ov33700]

after many hours of struggle I found that my troubles were due to a bad library included in my project. it was targetting a wrong architecture, if i remove the lib it publishes without any error... the message is really not explicit !!!!