mason .. ERROR ubuntu 18.0.4

[richard200117]

when i do mason . . i get this error
richard@richard-PC:~/razercommander/builddir$ meson ..
The Meson build system
Version: 0.45.1
Source dir: /home/richard/razercommander
Build dir: /home/richard/razercommander/builddir
Build type: native build
Project name: razercommander
Build machine cpu family: x86_64
Build machine cpu: x86_64
Configuring org.gabmus.razercommander.desktop using configuration
Configuring org.gabmus.razercommander.service using configuration
Found Pkg-config: NO

data/meson.build:78:0: ERROR: Pkg-config not found.

A full log can be found at /home/richard/razercommander/builddir/meson-logs/meson-log.txt
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this is the full log from /home/richard/razercommander/builddir/meson-logs/meson-log.txt

Build started at 2018-09-08T11:23:40.043057
Main binary: /usr/bin/python3
Python system: Linux
The Meson build system
Version: 0.45.1
Source dir: /home/richard/razercommander
Build dir: /home/richard/razercommander/builddir
Build type: native build
Project name: razercommander
Build machine cpu family: x86_64
Build machine cpu: x86_64
Configuring org.gabmus.razercommander.desktop using configuration
Configuring org.gabmus.razercommander.service using configuration
Found Pkg-config: NO

data/meson.build:78:0: ERROR: Pkg-config not found.

[lucoda]

You have to install a new package using:

sudo apt install pkg-config

Best regards
Lucoda