ruby on rails nil.to_sym error
I'm not even sure how this broke. And I don't really know what the error means either. It was working previously.

    You have a nil object when you didn't expect it!
    The error occurred while evaluating nil.to_sym
      Extracted source (around line #3):

        1: <div id="probes">
        2: 	<h1>Edit Probes</h1>
        3: 	<% form_for @probe do |f| %>
        4: 		<%= f.error_messages %>
        5: 	  <p>
        6: 	    <%= f.label "Site name" %><br />

The controller:

    def edit
      @probe = Probe.find(params[:id])
    end


ruby on rails nil.to_sym error
===

I'm not even sure how this broke. And I don't really know what the error means either. It was working previously.

    You have a nil object when you didn't expect it!
    The error occurred while evaluating nil.to_sym
      Extracted source (around line #3):

        1: <div id="probes">
        2: 	<h1>Edit Probes</h1>
        3: 	<% form_for @probe do |f| %>
        4: 		<%= f.error_messages %>
        5: 	  <p>
        6: 	    <%= f.label "Site name" %><br />

The controller:

    def edit
      @probe = Probe.find(params[:id])
    end

