Rails调试错误

Question

I'm trying to debug a project in Rails.However,I constantly get this error in the browser:undefined local variable or method `byebug' for #"<"ArticlesController:0x9430c68>. The code for the Articles Controller is:

class ArticlesController < ApplicationController
  before_action :set_article,only: [:edit,:update,:show,:destroy]
  def index
    @articles = Article.all
  end

  def new
    @article = Article.new
  end

  def create
    byebug
    @article = Article.new(article_params)
    #@article.user = User.first
    if @article.save
      flash[:success] = "Article was succesfully created."
      redirect_to article_path(@article)
    else
      render 'new'
    end
  end

  def edit

  end

  def update

    if @article.update(article_params)
      flash[:success] = "Article was succesfully updated."
      redirect_to article_path(@article)
    else
      render 'edit'
    end
  end

  def show

  end

  def destroy

    @article.destroy
    flash[:danger]="Article was succesfully deleted."
    redirect_to articles_path
  end

  private
    def set_article
      @article =  Article.find(params[:id])
    end

    def article_params
      params.require(:article).permit(:title,:description)
    end
end

The error appears logically on the byebug command in the 'create' action.The gem 'byebug' is installed in the Gemfile:

 group :development, :test do
   gem 'sqlite3'
   # Call 'byebug' anywhere in the code to stop execution and get a debugger 
   console
   gem 'byebug', platform: :mri

 end

I work in Rails 5,and my IDE is Atom.I have searched and tried multiple answers,none of which have worked,so I have returned everything to how it was.Thank you for taking time to solve this problem,it means a lot!

Answer 1

If you are using Windows, try changing

gem 'byebug', platform: :mri

to

gem 'byebug', platform: [:mri, :mingw, :x64_mingw]

Otherwise, since people seem to have a lot of problems using byebug with Windows, I would try using a different debugger like pry .

With Rails you want to add the pry-rails gem into your Gemfile then run bundle install .