Firestore Carthage installation is missing gRPC-C++ in 8.0.0

[paulb777]

Opened to track issue raised at #7576 (comment)

[paulb777]

This looks like a Carthage issue. I reported at Carthage/Carthage#3185.

In the meantime, you can get the missing gRPC-C++.xcframework by manually downloading https://dl.google.com/dl/firebase/ios/carthage/8.0.0/FirebaseFirestore-6c7035fccbea27c0.zip in the browser and unzipping

[icedice]

This looks like a Carthage issue. I reported at Carthage/Carthage#3185.

In the meantime, you can get the missing gRPC-C++.xcframework by manually downloading https://dl.google.com/dl/firebase/ios/carthage/8.0.0/FirebaseFirestore-6c7035fccbea27c0.zip in the browser and unzipping

While this will work for local builds it's not going to work on our CI, but I could of cause setup a custom step to download and extract the file...

[paulb777]

Thanks to @elliottwilliams (in Carthage/Carthage#3185) for isolating this to an issue with the Firebase ZipBuilder in how it constructs xcframeworks for Carthage.

I'lll investigate a fix and follow up here.

[paulb777]

This issue and fix also applies to In App Messaging since it also has Resources. See Carthage/Carthage#3185 (comment).