Fixes dev server "ArgumentError" crashes by updating ruby, rails, other dependencies.

Gemfile

@@ -2,12 +2,12 @@ source 'https://rubygems.org'
 
 ruby '2.5.0'
 
-gem 'activeadmin', '1.0.0'
-gem 'delayed_job_active_record', '~> 4.1.2'
-gem 'devise'
-gem 'pg'
-gem 'rails', '4.2.10'
-gem 'unicorn'
+gem 'activeadmin', '1.3.0'
+gem 'delayed_job_active_record', '~> 4.1.3'
+gem 'devise', '4.4.0'
+gem 'pg', '~> 0.18'
+gem 'rails', '< 5.0'
+gem 'unicorn', '5.4.1'
 
 
 # Gems used only for assets and not required
@@ -20,8 +20,7 @@ end
 
 group :development, :test do
   gem 'pry'
-  gem 'rspec-rails', '3.4.2'
-  gem 'rspec-mocks', '3.4.1'
+  gem 'rspec-rails', '3.6.1'
   gem 'test-unit', '~> 3.0'
   gem "dotenv-rails"
 end

Gemfile.lock

@@ -20,19 +20,17 @@ GEM
       erubis (~> 2.7.0)
       rails-dom-testing (~> 1.0, >= 1.0.5)
       rails-html-sanitizer (~> 1.0, >= 1.0.3)
-    activeadmin (1.0.0)
+    activeadmin (1.3.0)
       arbre (>= 1.1.1)
-      bourbon
       coffee-rails
       formtastic (~> 3.1)
       formtastic_i18n
-      inherited_resources (~> 1.7)
-      jquery-rails
-      jquery-ui-rails
-      kaminari (>= 0.15, < 2.0)
-      railties (>= 4.2, < 5.2)
+      inherited_resources (>= 1.7.0)
+      jquery-rails (>= 4.2.0)
+      kaminari (>= 0.15)
+      railties (>= 4.2, < 5.3)
       ransack (~> 1.3)
-      sass-rails
+      sass (~> 3.1)
       sprockets (< 4.1)
     activejob (4.2.10)
       activesupport (= 4.2.10)
@@ -52,12 +50,9 @@ GEM
     arbre (1.1.1)
       activesupport (>= 3.0.0)
     arel (6.0.4)
-    bcrypt (3.1.11)
-    bourbon (5.0.0)
-      sass (~> 3.4)
-      thor (~> 0.19)
+    bcrypt (3.1.12)
     builder (3.2.3)
-    coderay (1.1.1)
+    coderay (1.1.2)
     coffee-rails (4.2.2)
       coffee-script (>= 2.2.0)
       railties (>= 4.0.0)
@@ -67,47 +62,44 @@ GEM
     coffee-script-source (1.12.2)
     concurrent-ruby (1.0.5)
     crass (1.0.4)
-    delayed_job (4.1.4)
-      activesupport (>= 3.0, < 5.2)
-    delayed_job_active_record (4.1.2)
-      activerecord (>= 3.0, < 5.2)
+    delayed_job (4.1.5)
+      activesupport (>= 3.0, < 5.3)
+    delayed_job_active_record (4.1.3)
+      activerecord (>= 3.0, < 5.3)
       delayed_job (>= 3.0, < 5)
-    devise (4.4.1)
+    devise (4.4.0)
       bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
       railties (>= 4.1.0, < 5.2)
       responders
       warden (~> 1.2.3)
     diff-lcs (1.3)
-    dotenv (2.1.0)
-    dotenv-rails (2.1.0)
-      dotenv (= 2.1.0)
-      railties (>= 4.0, < 5.1)
+    dotenv (2.5.0)
+    dotenv-rails (2.5.0)
+      dotenv (= 2.5.0)
+      railties (>= 3.2, < 6.0)
     erubis (2.7.0)
     execjs (2.7.0)
-    ffi (1.9.18)
+    ffi (1.9.25)
     formtastic (3.1.5)
       actionpack (>= 3.2.13)
     formtastic_i18n (0.6.0)
     globalid (0.4.1)
       activesupport (>= 4.2.0)
-    has_scope (0.7.1)
-      actionpack (>= 4.1, < 5.2)
-      activesupport (>= 4.1, < 5.2)
-    i18n (0.9.3)
+    has_scope (0.7.2)
+      actionpack (>= 4.1)
+      activesupport (>= 4.1)
+    i18n (0.9.5)
       concurrent-ruby (~> 1.0)
     inherited_resources (1.8.0)
       actionpack (>= 4.2, <= 5.2)
       has_scope (~> 0.6)
       railties (>= 4.2, <= 5.2)
       responders
-    jquery-rails (4.3.1)
+    jquery-rails (4.3.3)
       rails-dom-testing (>= 1, < 3)
       railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
-    jquery-ui-rails (6.0.1)
-      railties (>= 3.2.16)
-    json (2.1.0)
     kaminari (1.1.1)
       activesupport (>= 4.1.0)
       kaminari-actionview (= 1.1.1)
@@ -120,27 +112,26 @@ GEM
       activerecord
       kaminari-core (= 1.1.1)
     kaminari-core (1.1.1)
-    kgio (2.10.0)
+    kgio (2.11.2)
     loofah (2.2.2)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.0)
       mini_mime (>= 0.1.1)
-    method_source (0.8.2)
+    method_source (0.9.0)
     mini_mime (1.0.0)
     mini_portile2 (2.3.0)
     minitest (5.11.3)
-    nokogiri (1.8.2)
+    nokogiri (1.8.4)
       mini_portile2 (~> 2.3.0)
     orm_adapter (0.5.0)
-    pg (0.18.4)
+    pg (0.21.0)
     polyamorous (1.3.3)
       activerecord (>= 3.0)
-    power_assert (0.2.7)
-    pry (0.10.3)
+    power_assert (1.1.3)
+    pry (0.11.3)
       coderay (~> 1.1.0)
-      method_source (~> 0.8.1)
-      slop (~> 3.4)
+      method_source (~> 0.9.0)
     rack (1.6.10)
     rack-test (0.6.3)
       rack (>= 1.0)
@@ -167,44 +158,44 @@ GEM
       rails_serve_static_assets
       rails_stdout_logging
     rails_serve_static_assets (0.0.5)
-    rails_stdout_logging (0.0.4)
+    rails_stdout_logging (0.0.5)
     railties (4.2.10)
       actionpack (= 4.2.10)
       activesupport (= 4.2.10)
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
-    raindrops (0.16.0)
-    rake (12.3.0)
-    ransack (1.8.6)
+    raindrops (0.19.0)
+    rake (12.3.1)
+    ransack (1.8.8)
       actionpack (>= 3.0)
       activerecord (>= 3.0)
       activesupport (>= 3.0)
       i18n
       polyamorous (~> 1.3.2)
-    rb-fsevent (0.10.2)
+    rb-fsevent (0.10.3)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)
     responders (2.4.0)
       actionpack (>= 4.2.0, < 5.3)
       railties (>= 4.2.0, < 5.3)
-    rspec-core (3.4.4)
-      rspec-support (~> 3.4.0)
-    rspec-expectations (3.4.0)
+    rspec-core (3.6.0)
+      rspec-support (~> 3.6.0)
+    rspec-expectations (3.6.0)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.4.0)
-    rspec-mocks (3.4.1)
+      rspec-support (~> 3.6.0)
+    rspec-mocks (3.6.0)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.4.0)
-    rspec-rails (3.4.2)
-      actionpack (>= 3.0, < 4.3)
-      activesupport (>= 3.0, < 4.3)
-      railties (>= 3.0, < 4.3)
-      rspec-core (~> 3.4.0)
-      rspec-expectations (~> 3.4.0)
-      rspec-mocks (~> 3.4.0)
-      rspec-support (~> 3.4.0)
-    rspec-support (3.4.1)
-    sass (3.5.5)
+      rspec-support (~> 3.6.0)
+    rspec-rails (3.6.1)
+      actionpack (>= 3.0)
+      activesupport (>= 3.0)
+      railties (>= 3.0)
+      rspec-core (~> 3.6.0)
+      rspec-expectations (~> 3.6.0)
+      rspec-mocks (~> 3.6.0)
+      rspec-support (~> 3.6.0)
+    rspec-support (3.6.0)
+    sass (3.5.7)
       sass-listen (~> 4.0.0)
     sass-listen (4.0.0)
       rb-fsevent (~> 0.9, >= 0.9.4)
@@ -215,27 +206,24 @@ GEM
       sprockets (>= 2.8, < 4.0)
       sprockets-rails (>= 2.0, < 4.0)
       tilt (>= 1.1, < 3)
-    slop (3.6.0)
     sprockets (3.7.2)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
     sprockets-rails (3.2.1)
       actionpack (>= 4.0)
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
-    test-unit (3.1.7)
+    test-unit (3.2.8)
       power_assert
     thor (0.20.0)
     thread_safe (0.3.6)
     tilt (2.0.8)
-    tzinfo (1.2.4)
+    tzinfo (1.2.5)
       thread_safe (~> 0.1)
-    uglifier (2.7.2)
-      execjs (>= 0.3.0)
-      json (>= 1.8.0)
-    unicorn (5.0.1)
+    uglifier (4.1.17)
+      execjs (>= 0.3.0, < 3)
+    unicorn (5.4.1)
       kgio (~> 2.6)
-      rack
       raindrops (~> 0.7)
     warden (1.2.7)
       rack (>= 1.0)
@@ -244,25 +232,27 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  activeadmin (= 1.0.0)
+  activeadmin (= 1.3.0)
   coffee-rails (~> 4.2.2)
-  delayed_job_active_record (~> 4.1.2)
-  devise
+  delayed_job_active_record (~> 4.1.3)
+  devise (= 4.4.0)
   dotenv-rails
-  pg
+  pg (~> 0.18)
   pry
-  rails (= 4.2.10)
+  rails (< 5.0)
   rails_12factor
   rails_serve_static_assets
-  rspec-mocks (= 3.4.1)
-  rspec-rails (= 3.4.2)
+  rspec-rails (= 3.6.1)
   sass-rails (~> 5.0.7)
   test-unit (~> 3.0)
   uglifier
-  unicorn
+  unicorn (= 5.4.1)
+
+RUBY VERSION
+   ruby 2.5.0p0
 
 RUBY VERSION
    ruby 2.5.0p0
 
 BUNDLED WITH
-   1.16.1
+   1.16.3

app/assets/stylesheets/application.scss

@@ -1,4 +1,4 @@
-@import "reset";
-@import "bootstrap";
+@import "reset.css";
+@import "bootstrap.css";
 @import "core";
 @import "users";

bin/bundle

@@ -0,0 +1,3 @@
+#!/usr/bin/env ruby
+ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../../Gemfile', __FILE__)
+load Gem.bin_path('bundler', 'bundle')

bin/rails

@@ -0,0 +1,4 @@
+#!/usr/bin/env ruby
+APP_PATH = File.expand_path('../../config/application', __FILE__)
+require_relative '../config/boot'
+require 'rails/commands'

bin/rake

@@ -0,0 +1,4 @@
+#!/usr/bin/env ruby
+require_relative '../config/boot'
+require 'rake'
+Rake.application.run

bin/setup

@@ -0,0 +1,29 @@
+#!/usr/bin/env ruby
+require 'pathname'
+
+# path to your application root.
+APP_ROOT = Pathname.new File.expand_path('../../',  __FILE__)
+
+Dir.chdir APP_ROOT do
+  # This script is a starting point to setup your application.
+  # Add necessary setup steps to this file:
+
+  puts "== Installing dependencies =="
+  system "gem install bundler --conservative"
+  system "bundle check || bundle install"
+
+  # puts "\n== Copying sample files =="
+  # unless File.exist?("config/database.yml")
+  #   system "cp config/database.yml.sample config/database.yml"
+  # end
+
+  puts "\n== Preparing database =="
+  system "bin/rake db:setup"
+
+  puts "\n== Removing old logs and tempfiles =="
+  system "rm -f log/*"
+  system "rm -rf tmp/cache"
+
+  puts "\n== Restarting application server =="
+  system "touch tmp/restart.txt"
+end

config/application.rb

@@ -2,7 +2,8 @@
 
 require 'rails/all'
 
-
+# Require the gems listed in Gemfile, including any gems
+# you've limited to :test, :development, or :production.
 Bundler.require(*Rails.groups)
 
 module Prelaunchr
@@ -32,6 +33,9 @@ class Application < Rails::Application
     # Configure the default encoding used in templates for Ruby 1.9.
     config.encoding = "utf-8"
 
+    # Do not swallow errors in after_commit/after_rollback callbacks.
+    config.active_record.raise_in_transactional_callbacks = true
+
     # Configure sensitive parameters which will be filtered from the log file.
     config.filter_parameters += [:password]