[su_note note_color="#fbfbc4" text_color="#FF0000" radius="4"] Error executing script RunApp: _GrailsClasspath_groovy$_run_closure1 (Use --stacktrace to see the full trace) OR Error executing script Clean: _GrailsClasspath_groovy$_run_closure1 (Use --stacktrace to see the full trace) [/su_note] If you are getting any of the above errors in Grails then that means the scriptCache folder under your project in '.grails' folder has been corrupted. There is a 2-step fix for this issue -

• STEP-1. Delete 'scriptCache' folder in the location <HOME_PATH>/<GRAILS_VERSION>/projects/<PROJECT_NAME>/scriptCache
      where -     HOME_PATH - is the home folder of your user.         (In windows - this folder usually starts with your windows username)     GRAILS_VERSION - is your grails version e.g. 2.3.7     PROJECT_NAME - is the app name for your grails project
• STEP-2. Go the root folder of your project and run 'grails clean' & 'grails compile'.