Why does this error occur when running my rails app in production, but not in development?

Question

Here's the command I'm using, as well as the error output:

ubuntu@lab:/var/www/vue-chat-app.lizardgizzards.com/vue-chat-app/backend-rails (master) $ RAILS_ENV=production bundle exec rails s -b 0.0.0.0 -p 3010
=> Booting Puma
=> Rails 5.2.3 application starting in production
=> Run `rails server -h` for more startup options
Exiting
Traceback (most recent call last):
        84: from bin/rails:4:in `'
        83: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:291:in `require'
        82: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:257:in `load_dependency'
        81: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:291:in `block in require'
        80: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
        79: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require_with_bootsnap_lfi'
        78: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
        77: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `block in require_with_bootsnap_lfi'
        76: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require'
        75: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/commands.rb:18:in `'
        74: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/command.rb:46:in `invoke'
        73: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/command/base.rb:65:in `perform'
        72: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/thor-0.20.3/lib/thor.rb:387:in `dispatch'
        71: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/thor-0.20.3/lib/thor/invocation.rb:126:in `invoke_command'
        70: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/thor-0.20.3/lib/thor/command.rb:27:in `run'
        69: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/commands/server/server_command.rb:142:in `perform'
        68: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/commands/server/server_command.rb:142:in `tap'
        67: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/commands/server/server_command.rb:147:in `block in perform'
        66: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/commands/server/server_command.rb:53:in `start'
        65: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/rack-2.0.7/lib/rack/server.rb:283:in `start'
        64: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/rack-2.0.7/lib/rack/server.rb:354:in `wrapped_app'
        63: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/commands/server/server_command.rb:27:in `app'
        62: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/rack-2.0.7/lib/rack/server.rb:219:in `app'
        61: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/rack-2.0.7/lib/rack/server.rb:319:in `build_app_and_options_from_config'
        60: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/rack-2.0.7/lib/rack/builder.rb:40:in `parse_file'
        59: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/rack-2.0.7/lib/rack/builder.rb:49:in `new_from_string'
        58: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/rack-2.0.7/lib/rack/builder.rb:49:in `eval'
        57: from config.ru:in `'
        56: from config.ru:in `new'
        55: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/rack-2.0.7/lib/rack/builder.rb:55:in `initialize'
        54: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/rack-2.0.7/lib/rack/builder.rb:55:in `instance_eval'
        53: from config.ru:3:in `block in '
        52: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:48:in `require_relative'
        51: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:291:in `require'
        50: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:257:in `load_dependency'
        49: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:291:in `block in require'
        48: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
        47: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require_with_bootsnap_lfi'
        46: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
        45: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `block in require_with_bootsnap_lfi'
        44: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require'
        43: from /var/www/vue-chat-app.lizardgizzards.com/vue-chat-app/backend-rails/config/environment.rb:5:in `'
        42: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/application.rb:361:in `initialize!'
        41: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/initializable.rb:60:in `run_initializers'
        40: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/2.6.0/tsort.rb:205:in `tsort_each'
        39: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/2.6.0/tsort.rb:226:in `tsort_each'
        38: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/2.6.0/tsort.rb:347:in `each_strongly_connected_component'
        37: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/2.6.0/tsort.rb:347:in `call'
        36: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/2.6.0/tsort.rb:347:in `each'
        35: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/2.6.0/tsort.rb:349:in `block in each_strongly_connected_component'
        34: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/2.6.0/tsort.rb:431:in `each_strongly_connected_component_from'
        33: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/2.6.0/tsort.rb:350:in `block (2 levels) in each_strongly_connected_component'
        32: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/2.6.0/tsort.rb:228:in `block in tsort_each'
        31: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/initializable.rb:61:in `block in run_initializers'
        30: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/initializable.rb:32:in `run'
        29: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/initializable.rb:32:in `instance_exec'
        28: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/application/finisher.rb:69:in `block in '
        27: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/application/finisher.rb:69:in `each'
        26: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/engine.rb:356:in `eager_load!'
        25: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/engine.rb:475:in `eager_load!'
        24: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/engine.rb:475:in `each'
        23: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/engine.rb:477:in `block in eager_load!'
        22: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/engine.rb:477:in `each'
        21: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/engine.rb:478:in `block (2 levels) in eager_load!'
        20: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:246:in `require_dependency'
        19: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/active_support.rb:85:in `depend_on'
        18: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:334:in `depend_on'
        17: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/active_support.rb:47:in `require_or_load'
        16: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/active_support.rb:16:in `allow_bootsnap_retry'
        15: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/active_support.rb:48:in `block in require_or_load'
        14: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:356:in `require_or_load'
        13: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:37:in `load_interlock'
        12: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies/interlock.rb:13:in `loading'
        11: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/activesupport-5.2.3/lib/active_support/concurrency/share_lock.rb:151:in `exclusive'
        10: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies/interlock.rb:14:in `block in loading'
         9: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:37:in `block in load_interlock'
         8: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:378:in `block in require_or_load'
         7: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:291:in `require'
         6: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:257:in `load_dependency'
         5: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:291:in `block in require'
         4: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
         3: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require_with_bootsnap_lfi'
         2: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
         1: from /home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `block in require_with_bootsnap_lfi'
/home/ubuntu/.rbenv/versions/2.6.1/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require': /var/www/vue-chat-app.lizardgizzards.com/vue-chat-app/backend-rails/app/controllers/chat_room_controller.rb:85: syntax error, unexpected end-of-input, expecting end (SyntaxError)

This is the file it's apparently choking on, but I don't understand what the problem with it is:

class ChatRoomController < ApplicationController
  before_action :set_chat_room, only: [:show, :edit, :update, :destroy]
  skip_before_action :verify_authenticity_token

  def join
    user = User.find_by client_token: params[:client_token]

    if user
      user.join_room params[:room_name]
    else

    render :nothing => true
  end

  # GET /chat_rooms
  # GET /chat_rooms.json
  def index
    @chat_rooms = ChatRoom.all
  end

  # GET /chat_rooms/1
  # GET /chat_rooms/1.json
  def show
  end

  # GET /chat_rooms/new
  def new
    @chat_room = ChatRoom.new
  end

  # GET /chat_rooms/1/edit
  def edit
  end

  # POST /chat_rooms
  # POST /chat_rooms.json
  def create
    @chat_room = ChatRoom.new(chat_room_params)

    respond_to do |format|
      if @chat_room.save
        format.html { redirect_to @chat_room, notice: 'Chat room was successfully created.' }
        format.json { render :show, status: :created, location: @chat_room }
      else
        format.html { render :new }
        format.json { render json: @chat_room.errors, status: :unprocessable_entity }
      end
    end
  end

  # PATCH/PUT /chat_rooms/1
  # PATCH/PUT /chat_rooms/1.json
  def update
    respond_to do |format|
      if @chat_room.update(chat_room_params)
        format.html { redirect_to @chat_room, notice: 'Chat room was successfully updated.' }
        format.json { render :show, status: :ok, location: @chat_room }
      else
        format.html { render :edit }
        format.json { render json: @chat_room.errors, status: :unprocessable_entity }
      end
    end
  end

  # DELETE /chat_rooms/1
  # DELETE /chat_rooms/1.json
  def destroy
    @chat_room.destroy
    respond_to do |format|
      format.html { redirect_to chat_rooms_url, notice: 'Chat room was successfully destroyed.' }
      format.json { head :no_content }
    end
  end

  private
    # Use callbacks to share common setup or constraints between actions.
    def set_chat_room
      @chat_room = ChatRoom.find(params[:id])
    end

    # Never trust parameters from the scary internet, only allow the white list through.
    def chat_room_params
      params.fetch(:chat_room, {})
    end
end

I'm pretty sure I haven't even altered the above controller at all after generating it via scaffold generator.

Why does this error occur when running my rails app in production, but not in development?

Answers (1)

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