go data_error ai_generated true

rpc error: code = Internal desc = grpc: error while marshaling: proto: field tags don't match

ID: go/grpc-internal-error-proto-mismatch

Also available as: JSON · Markdown · 中文
80%Fix Rate
86%Confidence
0Evidence
2024-07-01First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
1.22 active — — —
1.23 active — — —

Root Cause

The protobuf definition used by client and server are out of sync (e.g., different field numbers or types), causing marshaling/unmarshaling failures.

generic

中文

客户端和服务器使用的protobuf定义不同步（例如不同的字段编号或类型），导致编组/解组失败。

Workarounds

  1. 95% success Regenerate protobuf stubs from the same .proto file for both client and server. 
    protoc --go_out=. --go-grpc_out=. *.proto
# ensure same .proto version is used everywhere
  2. 90% success Use buf tool to enforce proto compatibility checks. 
    buf breaking --against '.git#branch=main'

Dead Ends

Common approaches that don't work:

  1. Clearing the client cache and retrying. 95% fail

    The proto definitions are still mismatched; cache is irrelevant.

  2. Manually editing the generated .pb.go files. 90% fail

    Files are auto-generated; manual edits break regeneration.