ActiveRecord::StatementInvalid: SQLite3::BusyException: database is locked:

Pesky rails debugger.  I leave the computer for half an hour to clear out some snow.  while in debug mode an my sqlite test database gets locked.  No fear.

If your dev server is affected you try opening up the console 

rails c

and running

ActiveRecord::Base.connection.execute("BEGIN TRANSACTION; END;")




...or if your test db is affected, just run

rake db:test:prepare

in the terminal.