This issue is resolved after consulting https://github.com/golang/protobuf/issues/763
On Tuesday, August 6, 2019 at 1:15:41 AM UTC+2, Niket Agrawal wrote: > > Hello, > > I'm using protobuf with GROC in Golang. I followed the instructions on the > GRPC quick start for Go here https://grpc.io/docs/quickstart/go/. > Following are the steps I took to install the needed software and tools. > 1. Installed the protoc compiler using the pre-compiled binaries available > here - https://github.com/protocolbuffers/protobuf/releases . Chose > protobuf-3.9.0-linux-arch_64.zip package as per the instructions on the > link above. > 2. Installed the protoc plugin for Go using the command go get -u > github.com/golang/protobuf/protoc-gen-go > > protoc version is libprotoc 3.9.0 as checked after completing the above > steps. > > I proceeded with creating a simple .proto file with the following content. > > --------------------------------------------------------------------- > syntax = "proto3"; > > package api; > > service HiService{ > rpc SayHi (HiRequest) returns (HiResponse); > } > > message HiRequest{ > string hi = 1; > } > > message HiResponse{ > string hireply = 1; > } > > -------------------------------------------------------------------- > > To generate the corresponding .pb.go file I used the command -> protoc > --go_out=. file.proto. The .pb.go file has a compile time assertion in it > (pasted below) that checks for proto package version and says that if the > compilation fails at this particular line, proto package needs to be > updated. > > // This is a compile-time assertion to ensure that this generated file > > // is compatible with the proto package it is being compiled against. > > // A compilation error at this line likely means your copy of the > > // proto package needs to be updated. > > const _ = proto.ProtoPackageIsVersion3 // please upgrade the proto package > > > > The .proto and .pb.go files were compiled together with another project > and the compilation failed pointing out exactly the very same compile time > assertion line in the code. > > I do not understand how there is a mismatch in the package versions in the > first place? and how do I make them consistent? > > > Regards, > Niket > -- You received this message because you are subscribed to the Google Groups "Protocol Buffers" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/protobuf/c474fc82-13dc-4740-9e87-44cfe898cf06%40googlegroups.com.
