Unable to build protobuf to go endpoint

Question

using protobuf version 2.6.1 ( which i installed via homebrew)

I am trying to run

$ protoc --go_out=../cloud/ *.proto

I keep receiv

Answer 1

I met the same problem.

$ protoc --go_out=plugins=grpc:pb/ *.proto
protoc-gen-go: program not found or is not executable
--go_out: protoc-gen-go: Plugin failed with status code 1.

The solution as below:

Find the installation directory of protoc-gen-go, it must be in your $PATH.

export PATH=$PATH:/path/to/dir

You'd better add it to your .bash_profile

echo $"export PATH=\$PATH:$(/path/to/dir)" >> ~/.bash_profile
source ~/.bash_profile

then everything is ok.

Answer 2

I have Ubuntu 18.04.02 LTS and installed protoc using

sudo apt install protobuf-compiler

I have my GOPATH and GOBIN set correctly, but still when I did a protoc --go_out=. <filename> I was getting

protoc-gen-go: program not found or is not executable
--go_out: protoc-gen-go: Plugin failed with status code 1.

After reading bunch of places, was able to find that doing

go get -u github.com/golang/protobuf/protoc-gen-go

was able to fix the issue. Hope this helps someone out there.

Answer 3

Mby will help for somebody. I'm on Fedora 29.

When I installed Go I did:

echo 'export GOPATH=$HOME/Go' >> $HOME/.bashrc
source $HOME/.bashrc

So I have my GOPATH set up. Next I do:

echo 'export PATH=$PATH:$GOPATH/bin' >> $HOME/.bashrc
source $HOME/.bashrc

And my protoc compiler work lika a charm.

Answer 4

1. You should properly define your GO_PATH - where your go packages live. In other words, GO_PATH is your go workspace. The GO_PATH should be ~/go.

2. protoc-gen-go should be in your PATH. While protoc-gen-go lives in $GO_PATH/bin after you installed it.

---

Add these 2 important lines to your ~/.bash_profile:

export GO_PATH=~/go
export PATH=$PATH:/$GO_PATH/bin

Then you need to start a new shell session or just type in this line:

$ source ~/.bash_profile

Answer 5

Directly from grpc documentation:

Go plugins for the protocol compiler:

Install the protocol compiler plugins for Go using the following commands:

$ export GO111MODULE=on  # Enable module mode
$ go get google.golang.org/protobuf/cmd/protoc-gen-go \
         google.golang.org/grpc/cmd/protoc-gen-go-grpc

Update your PATH so that the protoc compiler can find the plugins:

$ export PATH="$PATH:$(go env GOPATH)/bin"

Answer 6

protoc-gen-go needs to be in your shell path, i.e. one of the directories listed in the PATH environment variable, which is different from the Go path. You can test this by simply typing protoc-gen-go at the command line: If it says "command not found" (or similar) then it's not in your PATH.