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 receiving this error.

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

I have the protoc-gen-go installed in my go path. Anyone else have this issue?

Try manually installing based on the instructions here: github.com/golang/protobuf go get -u github.com/golang/protobuf/{proto,protoc-gen-go}. There may be something wrong with the homebrew install. — Intermernet
– Intermernet, Commented Jan 22, 2015 at 22:00
Reinstalled everything. still the same error. I switched over to ver 2.6.0 . Still the same error. — R.J. Robinson
– R.J. Robinson, Commented Jan 23, 2015 at 0:26
You say protoc-gen-go is in your "go path", but it needs to be in your shell path, i.e. one of the directories listed in the PATH environment variable. What happens if you just type protoc-gen-go at the command line? If it says "command not found" (or similar) then it's not in your PATH. — Kenton Varda
– Kenton Varda, Commented Jan 23, 2015 at 3:26

Kenton Varda · Accepted Answer · 2015-05-07 10:07:51Z

63

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.

answered May 7, 2015 at 10:07

Kenton Varda

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6 Comments

Masood Khaari Over a year ago

FYI, it should live at $GOPATH/bin. So do this: export PATH=$PATH:$GOPATH/bin

Jiang YD Over a year ago

I have it in path and executable, but still report Plugin failed with status code 1.

Renato Aquino Over a year ago

@JiangYD, I had the same problem. Looks like protoc couldn't expand paths like ~/go/bin. Make sure you are using the complete directory in your PATH settings like /home/johndoe/go/bin instead of ~/go/bin.

Shaun Bouckaert Over a year ago

@darkdefender27 do you have GOPATH set? If not the default is $HOME/go/ . protoc seems to be ok expanding $HOME instead of ~ so for me adding $HOME/go/bin to my path worked.

Jimmy Shaw Over a year ago

I had the same issue but it was because GOPATH itself was not set within .bash_profile. So add the following line export GOPATH=$(go env GOPATH) above your export PATH=$PATH:$GOPATH/bin line inside the .bash_profile file.

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Tunaki · Accepted Answer · 2016-01-20 10:00:30Z

Using

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

is more safe than using

$ sudo apt-get install golang-goprotobuf-dev

Because the latest protoc-gen-go is using the lib github.com/golang/protobuf/proto, but protoc-gen-go in apt-get using the lib code.google.com/p/goprotobuf/proto which didn't exist now.

Quy Tang · Accepted Answer · 2018-10-23 04:11:28Z

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.
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

For ZSH Add import statements in - .zshrc file & run $ source .zshrc

james-see · Accepted Answer · 2018-08-08 14:24:27Z

13

On Ubuntu 18.04, this is verified working to solve this issue:

sudo apt-get install golang-goprotobuf-dev

edited Aug 8, 2018 at 14:24

james-see

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answered Nov 21, 2015 at 11:47

00imvj00

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2 Comments

Charles L. Over a year ago

Tried this 1/28/2016 and this does not work anymore. you can build .pb.go files, but not import them.

Matt Rkiouak Over a year ago

tried 3-3-2017, solved my issue same as OP, protoc-gen-go: program not found or is not executable

Bhaskar Reddy · Accepted Answer · 2019-03-22 22:56:45Z

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.

snowpeak · Accepted Answer · 2018-09-02 14:32:33Z

How I solved:

Add $GOPATH/bin to PATH by running export PATH=$PATH:$GOPATH/bin
add export GOPATH=$(go env GOPATH) above export PATH=$PATH:$GOPATH/bin line inside the .bash_profile file.
run go get -u for the required packages again.
run the code protoc --go_out=../cloud/ *.proto in your case.

pangpang · Accepted Answer · 2017-03-17 02:31:14Z

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.

Can you explain how did you find the installation directory for protoc-gen-go? FYI, protoc-gen-go is not there for me under $GOPATH/bin/
Using $ go get -u github.com/golang/protobuf/protoc-gen-go @pangpang

Boluwatife Fakorede · Accepted Answer · 2019-09-16 08:06:15Z

3

What I did to solve this was:

copy protoc-gen-go from the go bin folder in go workspace to /usr/local/bin/

run your command as before in your case "protoc --go_out=../cloud/ *.proto"

answered Sep 16, 2019 at 8:06

Boluwatife Fakorede

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1 Comment

Marco Feregrino Over a year ago

I tried adding the PATH variables and restaring terminal or source to reload PATH variables. Copying the file fix all the stuff and generating code on ma Catalina is working now, thanks !

Yrineu Rodrigues · Accepted Answer · 2021-01-16 03:29:27Z

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"

Aditya M P · Accepted Answer · 2022-09-29 14:26:04Z

On macOS, I had installed just protoc with brew install protobuf.

So, to get the go code generator, I also needed to do brew install protoc-gen-go.

Dzintars · Accepted Answer · 2018-11-24 23:03:26Z

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.

Daniel Ospitia · Accepted Answer · 2020-01-10 21:35:02Z

If you're using Fedora, ensure that the package "protoc-gen-go" is installed, and it's binary is in your shel PATH.

$sudo dnf install protoc-gen-go -y

muinh · Accepted Answer · 2022-03-30 07:48:31Z

If found this page because you get the error message in console when you run proto:

Protoc command not found

If you use linux then follow the instructions below:

download the protoc file here https://github.com/protocolbuffers/protobuf/releases/tag/v3.19.4 (i used to download the protoc-3.19.4-linux-x86_64.zip in my case.
extract the files in this folder `/home/your_username/.local
then you will have it like this: /home/your_username/.local/bin/protoc
Profit. this will work by typing just "protoc" in your terminal

Manish Kumar · Accepted Answer · 2022-04-15 19:04:41Z

0

enter image description here

I have installed protoc 3.20.0. But I didn't get the tag for generating the code for Golang. I have pasted the screenshot of all available tags.

answered Apr 15, 2022 at 19:04

Manish Kumar

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2 Comments

R.J. Robinson Over a year ago

7 year old ticket.

Community Over a year ago

As it’s currently written, your answer is unclear. Please edit to add additional details that will help others understand how this addresses the question asked. You can find more information on how to write good answers in the help center.

Pep · Accepted Answer · 2018-12-01 22:06:33Z

Ensure that your path to proton-gen-go in your PATH variable is absolute (i.e. /Users/me/go/bin instead of ~/go/bin.

Apparently protoc does not know how to expand ~.

PanBorewicz · Accepted Answer · 2023-12-12 14:46:08Z

On macOS: The Same problem for me. First installed by Brew, could not force it to work, so I went to: https://grpc.io/docs/languages/go/quickstart/

uninstall all already installed versions and do as in the tutorial:

go install google.golang.org/protobuf/cmd/[email protected] go install google.golang.org/grpc/cmd/[email protected]

then:

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

to check go env GOPATH just run

go env

Please, before running the commands, check current versions.

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