I checked the log and it looks like permissions on the data directory path is not sufficient. You can try executing the installer with "--enable_acledit 1" option which would grant the required permissions on the given path.
Which OS is this? You need to provide us the bitrock installation logs to see the cause of the failure. They will be present in the system temp directory.
my name is Aman Singh Bhadoriya. i am a new user of postgresql.
i am trying to install postgresql many time but every time i am facing this error. i try to find solution on net and try them all but none of them works for me.