hi all ! i have a rails app and it worked very well one day before.when i turn on my computer next time i have got this error
ActionController::InvalidAuthenticityToken
every time i try to process the form .also i have tried to change the form but the changes not available to see .even i start the server again or restart my computer .have any idea . thank you ! my rails verstion 2.1 gem version 1.1.1 ruby 1.8.6