The GATLING_HOME environment variable points to the wrong directory.

Hi,

I am new in Gatling, When I execute the Recorder, the recording Gatling Configuration window displayed and I am able record. But when I double click on Gatling.bat. I received this error.
The GATLING_HOME environment variable points to the wrong directory.
Please set it to the correct folder and try to launch Gatling again.
Press any key to continue .

Do we need to have GATLING_HOME set up in the environment variables? if yes, can you show me example?
When I set the GATLING_HOME, Gatling recording get this error.

The GATLING_HOME environment variable points to the wrong directory.
Please set it to the correct folder and try to launch Gatling again.
Press any key to continue . . .

Thanks,
Angel
. .