Why Does `protoc-gen-go-grpc` Fail with 'Program Not Found or Not Executable'?

protoc-gen-go-grpc Error: "Program Not Found or Not Executable"

When attempting to generate GRPC output files from .proto files using the command:

protoc -I ./src/pbdefs/protos/ --go-grpc_out=. src/pbdefs/protos/*.proto

You may encounter the following error:

protoc-gen-go-grpc: program not found or is not executable
Please specify a program using absolute path or make sure the program is available in your PATH system variable
--go-grpc_out: protoc-gen-go-grpc: Plugin failed with status code 1.

Solution:

This error indicates that the 'protoc-gen-go-grpc' plugin is missing. To resolve it:

1. Install the Plugin:

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

2. Ensure the 'PATH' Environment Variable Includes the Plugin's Location:

   • Windows: Add the plugin's installation directory to the 'PATH' environment variable.

   • Linux/macOS: Add the following line to your '.bashrc' or '.zshrc' file:

     export PATH=$PATH:$GOPATH/bin

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