Either Chocolatey is not installed on this machine or the installed version is unsupported. To check if Chocolatey is installed ...

Either Chocolatey is not installed on this machine or the installed version is unsupported. To check if Chocolatey is installed look for the directory "C:\ProgramData\Chocolatey" on the machine. If found delete it and also delete the environment variable "ChocolateyInstall". To install a supported version of Chocolatey run the script "ChocoInstall.cmd" (from an elevated command prompt) from the "CD
edist\Chocolatey" folder or from "\\dcsrdgmasa\GMAS\GOLD\External\Chocolatey".