ArgumentError in class#create while applying Ajax.

For these type of errors you must hav not initialized the vairiable with new keyword causing it to make a empty class.

<%@answer=Answer.new%>
 
 <%= form_for @answer, remote: true do |f|%>
 
 <%= f.text_area :content ,placeholder: "Write your answer", :class => 'a2', required: true%> <br>

<%= f.hidden_field :question_id , :value => question.id %>
 
 <%= f.submit value:"Answer" ,:class => 'button1' ,id: 'create_answer_submit'%>
 <%end%>
 <br>

So the line @answer = Answer.new will save you.

or in other case like <%@answer_feed=Answer.all.order(created_at: :desc)%>.

Just for example purpose.

And do take while rendering , do check that the partial file is in home or in someother folder

Hope it helps