"Failed to install gdbm"

[namitkewat@…]

i don't know where i am doing the mistake, even i have searched all the possible solution that google has presented to me, still i am getting this error.

Below is the terminal what i always get::::

--->  Computing dependencies for erlang
--->  Dependencies to be installed: perl5 perl5.12 gdbm
Error: Failed to install gdbm
Log for gdbm is at: /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_ports_databases_gdbm/gdbm/main.log
Error: The following dependencies were not installed: perl5 perl5.12 gdbm
Error: Status 1 encountered during processing.
To report a bug, see <http://guide.macports.org/#project.tickets>

::::::::and next is the log to which above error points:::

version:1
:debug:main changing euid/egid - current euid: 0 - current egid: 0
:debug:main egid changed to: 501
:debug:main euid changed to: 503
:error:main Failed to install gdbm
:debug:main couldn't open "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_databases_gdbm/gdbm/work/.macports.gdbm.state": permission denied
    while executing
"open $statefile a+"
    (procedure "open_statefile" line 63)
    invoked from within
"open_statefile"
    (procedure "check_variants" line 29)
    invoked from within
"check_variants activate"
    invoked from within
"$workername eval check_variants $target"
:notice:main Log for gdbm is at: /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_ports_databases_gdbm/gdbm/main.log

:::::: so what i have to do next???