"downloaded archive of binary target 'grpc' does not contain a binary artifact"

When I try to build a Flutter project in Xcode that uses Google APIs, the build fails with this error:

```
Running Xcode build...
Xcode archive done. 50.1s
Failed to build iOS app
Uncategorized (Xcode): Could not resolve package dependencies:
downloaded archive of binary target 'grpc' from 'https://dl.google.com/firebase/ios/bin/grpc/1.62.2/rc0/grpc.zip' does not contain a
binary artifact.
fatalError

Encountered error while archiving for device.
```

I have tried many combinations of deleting `Pod.lock`, `Pods`, `DerivedData`, etc.; `flutter clean`; cleaning the build in Xcode, etc., but I can't seem to fix this.

I downloaded the zipfile, and it exists and contains binaries.