erlang-src software package provides Erlang/OTP applications sources, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install erlang-src
erlang-src is installed in your system.
Make ensure the erlang-src package were installed using the commands given below,
$ sudo dpkg-query -l | grep erlang-src *
You will get with erlang-src package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Interpreters |
| Package | erlang-src |
| Version | 1:18.3-dfsg-1ubuntu3 |
| Description | Erlang/OTP applications sources |
| Sub Section | Interpreters |