Urgent

We are new in RoR :

Can some one help on the below :

rake aborted! can’t activate, already activated prawn-0.8.4

<See full trace by running task with --trace>

Q1 - how we resolve the rake aborted …

Q 2- How we see [ the See full trace by running task with --trace] , in
RoR

its urgent .

Regards

@ marksman