Pre-generated well-known types packaged into protobuf cannot be found

[adrianflutur]

Hello,

We've just updated our protobuf dependencies for our applications, and noticed those well-known types from Google are now pre-packaged into the protobuf package (#1081).

That's great, but right now it seems like some of the pre-generated files are missing.

My configuration:

Windows 11
Flutter 3.32.8
protoc compiler v33.0
dart protoc_plugin v25.0.0
dart protobuf package v6.0.0

Problem

When I try to generate some of my protos, the output files end up with export declarations looking like this:

export 'package:protobuf/well_known_types/google/protobuf/any.pbenum.dart';
export 'package:protobuf/well_known_types/google/protobuf/empty.pbenum.dart';

The problem here is that those 2 exported files:
any.pbenum.dart
empty.pbenum.dart
do not actually exist in the protobuf repository, so I get a runtime error when I try to build my application:

[REDACTED]/lib/src/file_transfer.pbenum.dart(17,1): error GBB7C8005: Error when reading '[REDACTED]/dart-pub-cache/hosted/pub.dev/protobuf-6.0.0/lib/well_known_types/google/protobuf/any.pbenum.dart': The system cannot find the file specified.

If I navigate to that exact location in my filesystem, I can see that those files indeed do not exist. Only these files actually exist:

$ ls -1
any.pb.dart
any.pbjson.dart
api.pb.dart
api.pbjson.dart
duration.pb.dart
duration.pbjson.dart
empty.pb.dart
empty.pbjson.dart
field_mask.pb.dart
field_mask.pbjson.dart
source_context.pb.dart
source_context.pbjson.dart
struct.pb.dart
struct.pbenum.dart
struct.pbjson.dart
timestamp.pb.dart
timestamp.pbjson.dart
type.pb.dart
type.pbenum.dart
type.pbjson.dart
wrappers.pb.dart
wrappers.pbjson.dart

I guess in the meantime, we can downgrade to the previous version and continue to generate the well-known types ourselves, just like we did until now. But it would be nice to fix this issue too :-)

Thanks