I tried to run $ bundle exec rake db:reset
and found the following on console
Couldn\'t drop db/development.sqlite3 : #
When you do db:reset, it's running db:drop
and db:setup
in sequence. Your error message indicates that db/development.sqlite
couldn't be deleted.
If you're on Windows, maybe you need to stop your Rails server and console. Otherwise, figure out what's preventing the file from being deleted. It could be permission problem. A reboot may solve the problem too.