capnpc-capnp command not found

Introduction

When you run more command in linux terminal / console, you get the following error message

capnpc-capnp: command not found

or when using sudo you get the following error message

sudo: capnpc-capnp: command not found

Solutions to capnpc-capnp: command not found

How To Fix capnpc-capnp: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu capnpc-capnp is provided by capnproto package.

capnproto is:

Similar to Protocol Buffers, Cap’n Proto is an efficient means of serializing structured data to be transferred across a network or written to disk. Users write a Cap’n Proto definition file that drives a code generator, which in turn emits C++ code for encoding & decoding messages in the Cap’n Proto format.

In addition to being extremely fast, Cap’n Proto also smooths over some of the rougher aspects of Protocol Buffers & introduces a number of new features to boot.

This package contains a small suite of tools for developing & maintaining your Cap’n Proto schema files, including a code generator for compiling your schema files to supported languages.

To fix this problem, we can install more using the command below.

sudo apt-get -y install capnproto

This command might take some time to finish depending on your machine internet connection.

You can also use apt command to install capnproto.

sudo apt -y install capnproto

Or if you have aptitude installed you can use the following command.

sudo aptitude install capnproto

Summary

In this tutorial we learn how to fix capnpc-capnp command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.