# Don't know how to build task 'db:migrate:engines' **URL:** \ **Category:** Engines\ **Created:** [May 20, 2007, 5:14am UTC](https://www.ruby-forum.com/t/dont-know-how-to-build-task-dbengines/104593 "2007-05-20T05:14:50Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![javier\_barcena](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/dfb087/32.png) [@javier\_barcena](https://www.ruby-forum.com/u/javier_barcena)\ **Post date:** [May 20, 2007, 5:14am UTC](https://www.ruby-forum.com/t/dont-know-how-to-build-task-dbengines/104593/1 "2007-05-20T05:14:50Z")
hello, that instruction is used now to use rake db: migrate engine? Thanks, ---
**Author:** ![javier\_barcena](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/dfb087/32.png) [@javier\_barcena](https://www.ruby-forum.com/u/javier_barcena)\ **Post date:** [May 20, 2007, 11:01am UTC](https://www.ruby-forum.com/t/dont-know-how-to-build-task-dbengines/104593/2 "2007-05-20T11:01:14Z")
Hi Javier, This is covered quite thoroughly in the README for your particular version of the plugin. Please check the documentation, and if you’re still having problems let us know the version of the plugin and the version of Rails you’re using. James ---
**Author:** ![javier\_barcena](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/dfb087/32.png) [@javier\_barcena](https://www.ruby-forum.com/u/javier_barcena)\ **Post date:** [May 20, 2007, 4:35pm UTC](https://www.ruby-forum.com/t/dont-know-how-to-build-task-dbengines/104593/3 "2007-05-20T16:35:53Z")
Hi, james. thanks for your help. really rails 1.2.3 engine 1.2.0 hello James. thanks for your aid. really. sirvio even to understand a little to me but in depth your development that already counts on my humble contribution. in which you need. = manages to form config.plugins [“engines”, “\*”] in config/enviroment.rb. Well then now. as I make the migration of the models of engine? Law the documentation but recein this ycomprendiendo the concept of engines and is to me difficult. to ever like making the migrations and following soon. leere with but depth all doc. But equal I want that you guide to me. in order to be able. to make work login\_engine user\_engine. from already I am been thankful to you. Javier. Argentina - Bariloche 2007/5/20, James A. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid): ---
**Author:** ![javier\_barcena](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/dfb087/32.png) [@javier\_barcena](https://www.ruby-forum.com/u/javier_barcena)\ **Post date:** [May 21, 2007, 12:33am UTC](https://www.ruby-forum.com/t/dont-know-how-to-build-task-dbengines/104593/4 "2007-05-21T00:33:32Z")
ok. I include/understand. but reading. it is what I need. 🙂 hare. meanwhile. it will continue consulting by new doubts. Greetings and thanks. dummies ok james. thanks, 2007/5/20, James A. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid): ---
**Author:** ![javier\_barcena](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/dfb087/32.png) [@javier\_barcena](https://www.ruby-forum.com/u/javier_barcena)\ **Post date:** [May 21, 2007, 12:00am UTC](https://www.ruby-forum.com/t/dont-know-how-to-build-task-dbengines/104593/5 "2007-05-21T00:00:28Z")
Hi Javier, I’m not 100% sure what the issue here is, but I’ll try and cover off the obvious things. Firstly, with Rails 1.2 you no longer run “rake db:migrate:engines” - this is very much covered in the README and UPGRADING notes. The other thing is that the login\_engine and user\_engines are deprecated, and no longer supported, so they probably won’t work in their current state with Rails 1.2. Patches (with tests) are welcome, but not expected. James