Indu RS wrote:
> by creating a new migration file using the command "ruby script/generate
> migration create_users" and made the appropriate changes like
> "add_column :users,:password,:string" in that file, an error is occuring
> like "Another file named 001_create_users.rb already exists".

Try to name your migration after what it is doing, e.g:
./script/generate migration AddPasswordToUserModel

Don't know why you get the error you do, but naming migrations more
uniquely should at least avoid it :)

H!