missing file: byte_buffer.h

[bnetz]

Hi,
when using cloud_firestore I get this error on macOS 11.2.3 (Big Sur):

Xcode's output:
↳
In file included from /Users/xy/AndroidStudioProjects/projectname/ios/Pods/FirebaseFirestore/Firestore/core/src/nanopb/writer.cc:17:
/Users/xy/AndroidStudioProjects/projectname/ios/Pods/FirebaseFirestore/Firestore/core/src/nanopb/writer.h:28:10: fatal error: 'grpcpp/support/byte_buffer.h' file not found

Reinstalled flutter, Xcode, but the problem persists - even when I build an new project from scratch.

When I create a new user on my machine and login with this user I am able to use the project without error. When I send my project to a colleague he is able to run it flawlessly.

Others had the same error and found a solution (here), i.e. to reinstall /update cocoapods, but this did not work for me.

Would appreciate help very much - thank you in advance!!!