The 2 minutes tutorial

It's really simple :

Download and unzip the distribution
Do not install the application in a directory starting with a digit.
Execute on Windows :

or on other plateforms :
Execute the following commands on your Maven projects :

In case of "Plugin not found"

see the FAQ.

In case of "Error resolving version for 'org.codehaus.mojo:sonar-maven-plugin': Plugin requires Maven version 3.0"

see the FAQ.