In which folder is a file with the log? Application mode is DEV.
Play version is 1.3.1.
You need to create a custom file as conf/log4j.properties which includes:
log4j.rootLogger=Rolling
# Rolling files
log4j.appender.Rolling.File=/var/log/application.log //This is your log-file path
After that you have to refer this file from conf/application.conf as:
application.log.path=/log4j.properties