undefined method `call' for nil:NilClass

Hi

why would I be getting this error after submitting my form?

NoMethodError in EchantillonsController#create
undefined method `call' for nil:NilClass

Can't say from this what caused error. Please paste in which line error
happened and what is there on that line.

Just a guess only

         if params[:echantillon][:vignette].blank?

   instead of this please try

   unless params[:echantillon][:vignette]

Sijo