Download Groovy Binary From http://groovy.codehaus.org/Download
Download zip: Binary Release
Extract Local Disk say D;\GROOVY\ groovy-2.3.9
It contains the Folder Structure
D:. ├───bin
├───conf
├───embeddable
───indy
├───lib
└───META-INF
Go to Control Panel\User Accounts\User Accounts Change My Environment Variables
Set/new GROOVY_HOME = D:\GROOVY\groovy-2.3.9 (don’t put : semicolon)
Set PATH = C:\Program Files\Java\jdk1.8.0_25\bin;%GROOVY_HOME%\bin;
Add groovy-all.jar to CLASSPATH
D:\ GROOVY\ \groovy-2.3.9\embeddable\groovy-all-2.3.9.jar;.
Close and Open Command and Say –groovy
For console -groovyConsole
For this error please make sure that above procedure done perfectly