ok i installed kilk and now hwen i go to install a program I get this error at the end

Your /etc/fstab is not yet prepared for mounting .cmg images.
As root, please make /tmp/app writeable and add the following lines:
################################################## ##############
/tmp/app/1/image /tmp/app/1 cramfs,iso9660 user,noauto,ro,loop,exec 0 0
/tmp/app/2/image /tmp/app/2 cramfs,iso9660 user,noauto,ro,loop,exec 0 0
/tmp/app/3/image /tmp/app/3 cramfs,iso9660 user,noauto,ro,loop,exec 0 0
/tmp/app/4/image /tmp/app/4 cramfs,iso9660 user,noauto,ro,loop,exec 0 0
/tmp/app/5/image /tmp/app/5 cramfs,iso9660 user,noauto,ro,loop,exec 0 0
/tmp/app/6/image /tmp/app/6 cramfs,iso9660 user,noauto,ro,loop,exec 0 0
/tmp/app/7/image /tmp/app/7 cramfs,iso9660 user,noauto,ro,loop,exec 0 0
################################################## ##############

what does this mean and how can i fix it, pretty much a newbi when it comes to installing anything within linux or updating anything, to much of a windows user lol