Error:psycopg2.OperationalError: FATAL: Peer authentication failed for user "test"

Hello-

So, I'm a total newbie in Django, and I'm using this tutorial:http://www.programmersbook.com/page/21/Django-Beginner-Tutorial-Part-I/. I got stuck at the 7.th step.

My error is this(I'm a xubuntu user):

Traceback (most recent call last):

  File "manage.py", line 10, in <module>

    execute_from_command_line(sys.argv)

  File "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 443, in execute_from_command_line

    utility.execute()

  File "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 382, in execute

    self.fetch_command(subcommand).run_from_argv(self.argv)

  File "/usr/local/lib/python2.7/dist-packages/django/core/management/base.py", line 196, in run_from_argv

    self.execute(*args, **options.__dict__)

  File "/usr/local/lib/python2.7/dist-packages/django/core/management/base.py", line 232, in execute

    output = self.handle(*args, **options)

  File "/usr/local/lib/python2.7/dist-packages/django/core/management/base.py", line 371, in handle

    return self.handle_noargs(**options)

  File "/usr/local/lib/python2.7/dist-packages/django/core/management/commands/syncdb.py", line 57, in handle_noargs

    cursor = connection.cursor()

  File "/usr/local/lib/python2.7/dist-packages/django/db/backends/__init__.py", line 306, in cursor

    cursor = self.make_debug_cursor(self._cursor())

  File "/usr/local/lib/python2.7/dist-packages/django/db/backends/postgresql_psycopg2/base.py", line 177, in _cursor

    self.connection = Database.connect(**conn_params)

  File "/usr/lib/python2.7/dist-packages/psycopg2/__init__.py", line 179, in connect

    connection_factory=connection_factory, async=async)

psycopg2.OperationalError: FATAL:  Peer authentication failed for user "test"

I found this thread, but it didn't really help me. https://groups.google.com/forum/?fromgroups#!topic/django-users/kVpz4Xsmg_E

Please help!

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