How can i make vsftpd in standalone mode , when i set

listen=YES

It is able to run in standalone mode but gives error

500 OOPS: could not bind listening IPv4 socket

When i remove the listen part or make it to no, it says

500 OOPS: vsftpd: not configured for standalone, must be started from inetd

According to wiki , you need to set listen = NO to avoid the IPv4 binding issue but then in that case you won't be able to run in standalone mode. I need to run vsftpd in standalone mode and to do that i have to set listen=YES which would give the IPv4 error.

What should i do now?