# Rjs Type error when added jrails plugin into current RoR project **URL:** \ **Category:** Rails\ **Created:** [April 17, 2008, 1:05pm UTC](https://www.ruby-forum.com/t/rjs-type-error-when-added-jrails-plugin-into-current-ror-project/135044 "2008-04-17T13:05:42Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![irsami1982](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/i/85f322/32.png) [@irsami1982](https://www.ruby-forum.com/u/irsami1982)\ **Post date:** [April 17, 2008, 1:05pm UTC](https://www.ruby-forum.com/t/rjs-type-error-when-added-jrails-plugin-into-current-ror-project/135044/1 "2008-04-17T13:05:42Z")
I am really new in both RoR and AS. I wanted to replace jquey in my project as well as active scaffolding. But AS seems like closely incorporated with prototype. Therefore, I am trying to work with both jquery and prototype. I configured them and they are working togather. But after that my active scaffold is showing a RJS type error. The name of my active scaffold is user. And the error message is “RJS Type Error: #users-messages has no property”. I am trying to solve the problem. Mozzila debugger shows that the errors are in line 1222 and 396 of prototype.js AS shows its outputs as needed but I am failing to get rid of the pop- up error messages. Does anyone has any idea abou how to solve his problem?? Please help me. Thanks a lot.