Trouble creating database file using sqlite3 on mac mavericks from command line

I am trying to create a database in sqlite3 by running the following command:

sqlite3 test.db

and once sqlite3 opens, I get the following error:

Error: unable to open database "test.db": unable to open database file

Any suggestions as to how to fix this problem? The end goal is to have a database that is saved and can be accessed through a php script.

Thanks!