It seems Asterisk last version application app_While loop and related (EndWhile, etc) when it use on dialplan it displayed “No application ‘While’ for extension”.
By checking with Core show application list is not figured and if try to index with keyword it displayed "your application(s) is (are) not registered. This is general error when no application found.
But during software installation process and running command “make menu select” app_while item is included and marked to be installed.
if app_while source is included how to enable to used it?