Dependencies problems in Xcode

Hi,

I'm trying to upgrade a project which use CocoaPods to SPM (I'm on Silicon).

Problem : the project uses many dependencies including RxFirebase (https://cocoapods.org/pods/RxFirebase) which does not provide a SPM Package.swift.

To isolate the problem, I tried to create a new fresh project.

So I added the RxFirebase package manually but as soon as I do that and I try a build, I have the "No such module" error with many imports because I have to add the Firebase package with SPM but once it is done I have another "Count not find module" error with RxCocoa. However, it was the first dependencie I imported.

As you can, it is in the RxSwift package so what's wrong ?

Thx.