undefined method `article_name' .................NoMethodError in ArticlesController#create

class ArticlesController < ApplicationController def index @articles = Article.all end def show @article = Article.find(params[ :id]) end def new @article = Article.new end def create @article = Article.new(article_params) if @article.save redirect_to @article else render 'new' end end

private
 def article_params
       params.require(:article).permit(:Article_name,:enter_text)
end

end