go data_error ai_generated true

proto: unable to resolve "type.googleapis.com/pb.Payment"

ID: go/proto-any-unmarshal-type-not-found

Also available as: JSON · Markdown · 中文
80%Fix Rate
86%Confidence
0Evidence
2024-12-02First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
google.golang.org/protobuf v1.30+ active — — —

Root Cause

protojson or proto.Unmarshal encountered an Any message whose embedded type URL is not registered in the global type registry.

generic

中文

protojson 或 proto.Unmarshal 遇到 Any 消息，其内嵌 type URL 未在全局类型注册表中注册。

Workarounds

  1. 93% success 
    import _ "example.com/project/pb" // triggers init() registration
// or explicit:
protoregistry.GlobalTypes.RegisterMessage(paymentpb.Payment{}.ProtoReflect().Type())
  2. 88% success 
    opts := protojson.UnmarshalOptions{
    Resolver: protoregistry.GlobalTypes,
}
if err := opts.Unmarshal(data, msg); err != nil {
    return err
}

Dead Ends

Common approaches that don't work:

  1. 95% fail

    Any.Value contains a serialized message with a type prefix; direct assignment yields garbage.

  2. 60% fail

    Works only if the caller knows the type; defeats the purpose of Any and breaks polymorphic dispatch.