com_newrelic_trace_v1

To generate the v1.pb.go code, run the following from the top level github.com/newrelic/go-agent package:

protoc --go_out=. --go_opt=paths=source_relative \
    --go-grpc_out=. --go-grpc_opt=paths=source_relative \
    v3/internal/com_newrelic_trace_v1/v1.proto

Be mindful which version of protoc-gen-go and protoc-gen-go-grpc you are using. Upgrade both of these tools to the latest with:

go install google.golang.org/protobuf/cmd/protoc-gen-go@latest
go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@latest

When you regenerate the file

Once you have generated the code, you will need to add a build tag to the file:

// +build go1.9

This is because the gRPC/Protocol Buffer libraries only support Go 1.9 and above.