ccls command not found

In this troubleshooting guide we learn how to fix ccls command not found error message

Introduction

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

ccls: command not found

or when using sudo you get the following error message

sudo: ccls: command not found

In Ubuntu ccls is provided by ccls package.

ccls is:

This originates from cquery, and is a server implementing Language Server Protocol for C/C++/Objective-C. It supports:

code completion (with both signature help and snippets)
definition/references, and other cross references
cross reference extensions: $ccls/call $ccls/inheritance $ccls/member $ccls/vars …
formatting
hierarchies: call (caller/callee) hierarchy, inheritance (base/derived) hierarchy, member hierarchy
symbol rename
document symbols and approximate search of workspace symbol
hover information
diagnostics and code actions (clang FixIts)
semantic highlighting and preprocessor skipped regions
semantic navigation: $ccls/navigate

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

sudo apt-get -y install ccls

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

You can also use apt command to install ccls.

sudo apt -y install ccls

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

sudo aptitude install ccls

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