protoc-gen-go: program not found or is not executable

Question

I am trying to build a sample app with go grpc but I am unable to generate the code using \"protoc\"

Have installed the required libraries/go packages using:

Answer 1

Many of the other responses address path issues but if it's not installed, you can install it using the following command:

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

Answer 2

There are two ways to install the protobuf compiler, if you're on Ubuntu you can use this,

sudo apt install protobuf-compiler

Then of course there's the standard way,

go get -u github.com/golang/protobuf/{proto,protoc-gen-go}

Here forward it's just adding the path. Assuming when you installed Go you did this,

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

Now you can just extend this,

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

Strangely protoc can't expand ~.

Answer 3

They commented above that the following package had to be added

sudo apt install protobuf-compiler

In my case I also had to add this one ..

sudo apt install golang-goprotobuf-dev

Answer 4

Make sure your GOBIN is set in the PATH variable. Otherwise, you may encounter this problem. Check GOBIN path by running go env and confirm GOBIN is not empty.

If it is empty then try like below

export GOPATH=$HOME/go
PATH=$PATH:$GOPATH/bin
protoc --go_out=plugins=grpc:. *.proto

Answer 5

Resolved by following the steps:

Install go library using: go get -u github.com/golang/protobuf/{proto,protoc-gen-go}

1. Run vim ~/.bash_profile
2. Add:

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

3. Run source ~/.bash_profile

Reference: Unable to build protobuf to go endpoint

Answer 6

From the github repo this solution has worked for me.

Go version is go version go1.14.1 linux/amd64

Add this to .bashrc and source it.

export GOROOT=/usr/local/go
export GOPATH=$HOME/go
export GOBIN=$GOPATH/bin
export PATH=$PATH:$GOROOT:$GOPATH:$GOBIN

https://github.com/golang/protobuf/issues/795