error when doing grails clean or grails run-app after upgrading to ver 2.1 from 1.3.7

Question

I just upgraded to grails 2.1.. the latest release available, from grails 1.3.7, I have updated the grails_home and path environment variables to reflect this new version. but when I do grails run-app or grails clean I get the following error

Exception in thread "main" java.lang.NoClassDefFoundError: org/codehaus/groovy/grails/cli/support/GrailsStarter
Caused by: java.lang.ClassNotFoundException: org.codehaus.groovy.grails.cli.support.GrailsStarter
        at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
Could not find the main class: org.codehaus.groovy.grails.cli.support.GrailsStarter.  Program will exit.

I have groovy ver 1.8.3 setup already.

What am I missing or doing wrong here? Thanks

Answer 1

Have you tried to refresh dependencies before executing clean or compile ?