Not able to drop the database in PostgreSql Server

[yogamceS]

I am accesing the postgresql server using pgAdmin III tool, and trying to drop the database then I am getting an error as:

Maintenance database can’t be dropped.

ERROR: database "postgres" is being accessed by other users

SQL state: 55006

[rski]

I am accesing the postgresql server using pgAdmin III tool, and trying to drop the database then I am getting an error as:

Maintenance database can’t be dropped.

ERROR: database "postgres" is being accessed by other users

SQL state: 55006

what database are you trying to drop?

[yogamceS]

what database are you trying to drop?

I need to delete postgres database using Admin Tool.