Unable to open database？？？

[master huang]

As the question of the title ,when I enter "sqlite3 foo.db",then I enter "create table student();",but it shows "unable to open database "foo.db": unable to open database file",I don't know the matter,If you know, tell me ,thanks very much...

[andre]

Perhaps you should show us the real code, instead of a sequence of "what you entered".