grpc-web plugin not working in GitHub Codespaces

[andrewweston]

I am running the code generator plugin in GitHub Codespaces and gett the following error:

/usr/local/bin/protoc-gen-grpc-web: 1: /usr/local/bin/protoc-gen-grpc-web: Not: not found
--grpc-web_out: protoc-gen-grpc-web: Plugin failed with status code 127.

protoc is installed and in the PATH and both binaries are executable (chmod +x ...).

Do you have any thoughts on where I might start to resolve this?

[sampajano]

Thanks for the report! :)

May i know what exact command you were trying to run while encountering this error? :)

Curious if you're able to run /usr/local/bin/protoc-gen-grpc-web yourself? If not, what's the output when you run ls -l /usr/local/bin/protoc-gen-grpc-web?

And i supposed you've already followed the instructions here to setup both compilers?
https://github.com/grpc/grpc-web/tree/master/net/grpc/gateway/examples/helloworld#generate-protobuf-messages-and-client-service-stub

[andrewweston]

This is the installation step we use (Codespaces runs in a Docker container):

ARG PB_WEB_VERSION
RUN curl -LO "https://github.com/grpc/grpc-web/releases/download/protoc-gen-grpc-web-${PB_WEB_VERSION}-linux-x86_64" \
&& mv protoc-gen-grpc-web-${PB_WEB_VERSION}-linux-x86_64 /usr/local/bin/protoc-gen-grpc-web \
&& chmod +x /usr/local/bin/protoc-gen-grpc-web

I can run the same command locally and the plugin installs and works.

I can confirm protoc works by itself by generating js files using:

protoc --proto_path=. customer.proto --js_out=import_style=commonjs:.

However, when I run protoc using the grpc-web plugin

protoc -proto_path=. customer.proto --grpc-web_out=import_style=commonjs,mode=grpcwebtext:.

the plugin fails with the following error:

/usr/local/bin/protoc-gen-grpc-web: 1: /usr/local/bin/protoc-gen-grpc-web:
Not: not found --grpc-web_out: protoc-gen-grpc-web: Plugin failed with status code 127.

[sampajano]

Thanks for the details...

When i run:

protoc -proto_path=. customer.proto --grpc-web_out=import_style=commonjs,mode=grpcwebtext:.

I get error:

Unknown flag: -p

But i assume that's just a typo in your post..

I'm not familiar with Codespaces.. but this seems to be some filesystem issue that's specific to your Docker environment..

I can take a try later.. :)

[andrewweston]

Yes, it is a typo. It should have been --proto-path, not -proto-path.

[andrewweston]

And yes, it does seem very much like an environment issue. We've been using the grpc-web plugin locally for about 1 year with no issues.

[sampajano]

Ah i see!

I that case, consider searching / routing this issue to the protobuf project (who maintains protoc) too:
https://github.com/protocolbuffers/protobuf

I can help take a look later but i'm unlikely to have any additional context since we (mainly) only care about what happens after protoc-gen-grpc-web gets called.. :)

[andrewweston]

The thing that led me to believe the issue is with protoc-gen-grpc-web is that protoc works by itself (generates a js file) whereas it stops when I add the plugin. Also, if I try to execute the plugin by itself (I know, it's a plugin and not intended to used like this) using something like:

mode=text | protoc-gen-grpc-web

I get no error locally but get the following error in Codespaces:

/usr/local/bin/protoc-gen-grpc-web: line 1: Not: command not found

[sampajano]

Aha! Yeah that's a good way to confirm the issue.. It sounds like protoc-gen-grpc-web is somehow malfunctioning in Codespaces.. (Curious if the linux-x86_64 is the right version to use?)

[andrewweston]

That's what I thought too. I've checked and uname -a returns:

Linux codespaces_3d2e7f 5.4.0-1055-azure #57~18.04.1-Ubuntu SMP Fri Jul 16 19:40:19 UTC 2021 x86_64 GNU/Linux

[sampajano]

Ah ok then.. Thanks for confirming.. :)

I'll try to take a look when i can..

[sampajano]

Hey I tried to take a look here but it seems that i don't have access to any repo with Codespace I'm not sure how.. :)

Do you have some simple instructions for reproducing this without having access to a Codespace repo (e.g. maybe from a docker image directly)? Thanks :)

[andrewweston]

I'll see what I can do to reproduce using a simple Docker in Docker set-up. I might not get to get for a few days...

[MihailsKuzmins]

well, I have the same issue in Azure Devops

/usr/local/bin/protoc-gen-grpc-web: 1: Not: not found
--grpc-web_out: protoc-gen-grpc-web: Plugin failed with status code 127.

##[error]The process '/usr/bin/bash' failed with exit code 1
##[error]Bash failed with error: The process '/usr/bin/bash' failed with exit code 1

Below is my setup in Azure DevOps pipeline

1. Install gRPC

PROTOC_VERSION=3.17.3
PROTOC_ZIP=protoc-${PROTOC_VERSION}-linux-x86_64.zip

# install protoc
curl -OL https://github.com/protocolbuffers/protobuf/releases/download/v${PROTOC_VERSION}/$PROTOC_ZIP
sudo unzip -qq -o $PROTOC_ZIP -d /usr/local bin/protoc
sudo unzip -qq -o $PROTOC_ZIP -d /usr/local 'include/*'
sudo chmod +x /usr/local/bin/protoc
protoc --version

#clean up
rm -f $PROTOC_ZIP

2. Install grpc-web

PROTOC_VERSION=1.2.1
PROTOC_WEB_FILE=protoc-protoc-gen-grpc-web-${PROTOC_VERSION}-linux-x86_64
PROTOC_WEB_DST=/usr/local/bin/protoc-gen-grpc-web

# install protoc
curl -OL https://github.com/grpc/grpc-web/releases/download/v${PROTOC_VERSION}/${PROTOC_WEB_FILE}
sudo mv ${PROTOC_WEB_FILE} ${PROTOC_WEB_DST}
sudo chmod +x ${PROTOC_WEB_DST}

ls -l /usr/local/bin/protoc-gen-grpc-web
ls -al /usr/local/bin/

My yaml file is (script.sh includes both aforecited scripts)

trigger:
  - develop
pr:
  branches:
    include:
      - "*"

variables:
  vmImage: "ubuntu-latest"

jobs:
  - job: "job"
    pool:
      vmImage: $(vmImage)
    steps:
      - task: NodeTool@0
        displayName: "Install Node.js"
        inputs:
          versionSpec: "14.17.x"
          checkLatest: true

      - task: ShellScript@2
        displayName: "Run protogen"
        inputs:
          scriptPath: "script.sh"

for ls -l /usr/local/bin/protoc-gen-grpc-web I get

-rwxr-xr-x 1 vsts docker 9 Sep 11 20:29 /usr/local/bin/protoc-gen-grpc-web

[ali2210]

When I want to add grpc-web in my project.

1. npm i grpc-web 
2. protoc --js_out=import_style=commonjs,binary:. stubs/grpcc/task.proto --grpc-web_out=import_style=commonjsmode=grpcwebtext:.

         **`--grpc-web_out: protoc-gen-grpc-web: Plugin failed with status code 1.`**

@andrewweston

[masrur-qr]

I am running the code generator plugin in GitHub Codespaces and gett the following error:

/usr/local/bin/protoc-gen-grpc-web: 1: /usr/local/bin/protoc-gen-grpc-web: Not: not found
--grpc-web_out: protoc-gen-grpc-web: Plugin failed with status code 127.

protoc is installed and in the PATH and both binaries are executable (chmod +x ...).

Do you have any thoughts on where I might start to resolve this?

i think you should rename " protoc-gen-grpc-web-1.4.2-windows-aarch64.exe" to " protoc-gen-grpc-web" and place it in the same folder as protoc file "C:\protoc-3.12.3-win64\bin"