Heroku Rails部署被gem拒绝，而gem不在我的gemfile或lockfile中？

Question

我正在为一个已经在Heroku上运行的应用程序创建一个登台实例。我正在尝试通过终端中的git将一个特定的分支推送到一个全新的Heroku应用程序。在一个漫长的构建过程之后，由于邮件捕获器和它的依赖sqlite3，Heroku每次都拒绝推送。

我知道它不支持sqlite3，所以我从gemfile中删除了这两个gem。然后我删除了锁文件。运行捆绑包。然后捆绑安装。把所有东西都交给了Git。推送到Heroku，再一次被拒绝。一次又一次，我昨天删除了相同的两个宝石，无论我尝试了多少次，它总是能看到它们。有谁知道如何让Heroku注意到我已经移除了它抱怨的宝石？

此外，为了彻底起见，我最初只是尝试将它们移到Gemfile中的开发小组，但同样没有结果。Heroku拒绝让它过去。

无论我做过什么尝试(把它移到开发组，完全删除)，Heroku在安装mailcatcher和sqlite3时总是出错。gemfile和lockfile如下所示。有什么想法吗？

Gemfile：

source 'https://rubygems.org'
ruby '2.3.3'

# Rails Assets
source 'https://rails-assets.org' do
  gem 'rails-assets-bootstrap-datepicker'
  gem 'rails-assets-html5shiv'
  gem 'rails-assets-jquery', '~> 1.11.0'
  gem 'rails-assets-jquery.slimscroll'
  gem 'rails-assets-mediaelement', '2.14.2' # tests fail in 2.15.0
  gem 'rails-assets-modernizr'
  gem 'rails-assets-respond'
end

gem 'bugsnag'
gem 'carrierwave'
gem 'devise', git: 'https://github.com/plataformatec/devise.git', branch: 'master'
gem 'dotenv-rails'
gem 'dynamic_form'
gem 'email_preview'
gem 'email_validator'
gem 'eventmachine', '~> 1.0.4'
gem 'filterrific', '~> 4.0'
gem 'fog'
gem 'font-awesome-rails'
gem 'haml', '~> 4.0.3'
gem 'high_voltage'
gem 'html2haml'
gem 'humanize'
gem 'icalendar'
gem 'jquery-rails'
gem 'kaminari'
gem 'mixpanel-ruby'
gem 'okcomputer'
gem 'pg'
gem 'placeholder-gem'
gem 'pry-rails'
gem 'puma'
gem 'pundit', '~> 1.0.0'
gem 'rack-timeout'
gem 'rails', '4.2.7.1'
gem 'rails-assets-bootstrap', '3.1.1' # boostrap tests fail in 3.2.0
gem 'rails-console-tweaks'
gem 'rqrcode'
gem 'sidekiq', '4.2.10'
gem 'uglifier', '>= 1.3.0'
gem 'wisper'

# Administrate Dependencies
gem 'administrate', '~> 0.2.2'
gem 'bourbon', '4.2.7'
gem 'sass', '~> 3.4.0'
gem 'sass-rails', '~> 5.0.0'

group :development, :test do
  gem 'coffee-script'
  gem 'factory_girl_rails'
  gem 'jasmine-rails'
  gem 'rails-assets-jasmine-jquery'
  gem 'rspec-rails', '3.5.2'
end

group :debug do
  gem 'pry-remote'
end

group :test do
  gem 'capybara'
  gem 'email_spec'
  gem 'factory_girl_rspec'
  gem 'pundit-matchers', '~> 1.0.0'
  gem 'rspec-core'
  gem 'rspec-lintable'
  gem 'shoulda-matchers'
  gem 'simplecov'
  gem 'timecop'
  gem 'vcr'
  gem 'webmock'
end

group :production, :staging do
  gem 'rails_12factor'
end

group :development do
  gem 'better_errors'
  gem 'binding_of_caller'
  gem 'spring'
  gem 'spring-commands-rspec'
end

group :ct do
  gem 'guard'
  gem 'guard-bundler'
  gem 'guard-jasmine-rails'
  gem 'guard-jshintrb'
  gem 'guard-livereload'
  gem 'guard-rspec'
  gem 'guard-rubocop'
  gem 'guard-sheller'
  gem 'terminal-notifier'
  gem 'terminal-notifier-guard'
end

# Continuous integration gems
# exclude from production codebase via BUNDLE_WITHOUT env variable
group :ci do
  gem 'brakeman'
  gem 'bundler-audit'
  gem 'jshintrb'
  gem 'rubocop'
end

# utility gems that add binaries but should not be included
# into the loaded application codebase.
# exclude from production codebase via BUNDLE_WITHOUT env variable
group :toolbox do
  gem 'bundler-reorganizer'
  gem 'bundler-updater'
  gem 'foreman'
  gem 'thegarage-gitx'
  gem 'travis'
end

Lockfile：

    GIT
  remote: https://github.com/plataformatec/devise.git
  revision: 6dd444458258c27ad08f56151e74fe9998713818
  branch: master
  specs:
    devise (3.4.1)
      bcrypt (~> 3.0)
      orm_adapter (~> 0.1)
      railties (>= 3.2.6, < 5)
      responders
      thread_safe (~> 0.1)
      warden (~> 1.2.3)

GEM
  remote: https://rubygems.org/
  remote: https://rails-assets.org/
  specs:
    CFPropertyList (2.3.5)
    actionmailer (4.2.7.1)
      actionpack (= 4.2.7.1)
      actionview (= 4.2.7.1)
      activejob (= 4.2.7.1)
      mail (~> 2.5, >= 2.5.4)
      rails-dom-testing (~> 1.0, >= 1.0.5)
    actionpack (4.2.7.1)
      actionview (= 4.2.7.1)
      activesupport (= 4.2.7.1)
      rack (~> 1.6)
      rack-test (~> 0.6.2)
      rails-dom-testing (~> 1.0, >= 1.0.5)
      rails-html-sanitizer (~> 1.0, >= 1.0.2)
    actionview (4.2.7.1)
      activesupport (= 4.2.7.1)
      builder (~> 3.1)
      erubis (~> 2.7.0)
      rails-dom-testing (~> 1.0, >= 1.0.5)
      rails-html-sanitizer (~> 1.0, >= 1.0.2)
    activejob (4.2.7.1)
      activesupport (= 4.2.7.1)
      globalid (>= 0.3.0)
    activemodel (4.2.7.1)
      activesupport (= 4.2.7.1)
      builder (~> 3.1)
    activerecord (4.2.7.1)
      activemodel (= 4.2.7.1)
      activesupport (= 4.2.7.1)
      arel (~> 6.0)
    activesupport (4.2.7.1)
      i18n (~> 0.7)
      json (~> 1.7, >= 1.7.7)
      minitest (~> 5.1)
      thread_safe (~> 0.3, >= 0.3.4)
      tzinfo (~> 1.1)
    addressable (2.3.6)
    administrate (0.2.2)
      autoprefixer-rails (~> 6.0)
      datetime_picker_rails (~> 0.0.7)
      jquery-rails (~> 4.0)
      kaminari (~> 0.16)
      momentjs-rails (~> 2.8)
      neat (~> 1.1)
      normalize-rails (~> 3.0)
      rails (~> 4.2)
      sass-rails (~> 5.0)
      selectize-rails (~> 0.6)
    arel (6.0.4)
    ast (2.3.0)
    autoprefixer-rails (6.5.0.1)
      execjs
    backports (3.6.4)
    bcrypt (3.1.9)
    better_errors (2.1.1)
      coderay (>= 1.0.0)
      erubis (>= 2.6.6)
      rack (>= 0.9.0)
    binding_of_caller (0.7.2)
      debug_inspector (>= 0.0.1)
    bourbon (4.2.7)
      sass (~> 3.4)
      thor (~> 0.19)
    brakeman (3.5.0)
    bugsnag (5.3.3)
    builder (3.2.3)
    bundler-audit (0.3.1)
      bundler (~> 1.2)
      thor (~> 0.18)
    bundler-reorganizer (1.1.1)
      thor
    bundler-updater (0.0.3)
      thor
    capybara (2.4.4)
      mime-types (>= 1.16)
      nokogiri (>= 1.3.3)
      rack (>= 1.0.0)
      rack-test (>= 0.5.4)
      xpath (~> 2.0)
    carrierwave (1.1.0)
      activemodel (>= 4.0.0)
      activesupport (>= 4.0.0)
      mime-types (>= 1.16)
    chunky_png (1.3.8)
    coderay (1.1.1)
    coffee-script (2.3.0)
      coffee-script-source
      execjs
    coffee-script-source (1.8.0)
    concurrent-ruby (1.0.5)
    connection_pool (2.2.1)
    crack (0.4.2)
      safe_yaml (~> 1.0.0)
    datetime_picker_rails (0.0.7)
      momentjs-rails (>= 2.8.1)
    debug_inspector (0.0.2)
    diff-lcs (1.3)
    docile (1.1.5)
    dotenv (1.0.2)
    dotenv-rails (1.0.2)
      dotenv (= 1.0.2)
    dynamic_form (1.1.4)
    em-websocket (0.5.1)
      eventmachine (>= 0.12.9)
      http_parser.rb (~> 0.6.0)
    email_preview (1.5.4)
      rails (>= 3.0)
    email_spec (1.6.0)
      launchy (~> 2.1)
      mail (~> 2.2)
    email_validator (1.5.0)
      activemodel
    erubis (2.7.0)
    ethon (0.7.2)
      ffi (>= 1.3.0)
    eventmachine (1.0.9.1)
    excon (0.56.0)
    execjs (2.2.2)
    factory_girl (4.5.0)
      activesupport (>= 3.0.0)
    factory_girl_rails (4.5.0)
      factory_girl (~> 4.5.0)
      railties (>= 3.0.0)
    factory_girl_rspec (2.1.0)
      factory_girl (>= 2.0)
      rspec (>= 2.0)
    faraday (0.9.1)
      multipart-post (>= 1.2, < 3)
    faraday_middleware (0.9.1)
      faraday (>= 0.7.4, < 0.10)
    ffi (1.9.17)
    filterrific (4.0.0)
    fission (0.5.0)
      CFPropertyList (~> 2.2)
    fog (1.40.0)
      fog-aliyun (>= 0.1.0)
      fog-atmos
      fog-aws (>= 0.6.0)
      fog-brightbox (~> 0.4)
      fog-cloudatcost (~> 0.1.0)
      fog-core (~> 1.43)
      fog-digitalocean (>= 0.3.0)
      fog-dnsimple (~> 1.0)
      fog-dynect (~> 0.0.2)
      fog-ecloud (~> 0.1)
      fog-google (<= 0.1.0)
      fog-json
      fog-local
      fog-openstack
      fog-powerdns (>= 0.1.1)
      fog-profitbricks
      fog-rackspace
      fog-radosgw (>= 0.0.2)
      fog-riakcs
      fog-sakuracloud (>= 0.0.4)
      fog-serverlove
      fog-softlayer
      fog-storm_on_demand
      fog-terremark
      fog-vmfusion
      fog-voxel
      fog-vsphere (>= 0.4.0)
      fog-xenserver
      fog-xml (~> 0.1.1)
      ipaddress (~> 0.5)
      json (>= 1.8, < 2.0)
    fog-aliyun (0.1.0)
      fog-core (~> 1.27)
      fog-json (~> 1.0)
      ipaddress (~> 0.8)
      xml-simple (~> 1.1)
    fog-atmos (0.1.0)
      fog-core
      fog-xml
    fog-aws (1.3.0)
      fog-core (~> 1.38)
      fog-json (~> 1.0)
      fog-xml (~> 0.1)
      ipaddress (~> 0.8)
    fog-brightbox (0.11.0)
      fog-core (~> 1.22)
      fog-json
      inflecto (~> 0.0.2)
    fog-cloudatcost (0.1.2)
      fog-core (~> 1.36)
      fog-json (~> 1.0)
      fog-xml (~> 0.1)
      ipaddress (~> 0.8)
    fog-core (1.44.3)
      builder
      excon (~> 0.49)
      formatador (~> 0.2)
    fog-digitalocean (0.3.0)
      fog-core (~> 1.42)
      fog-json (>= 1.0)
      fog-xml (>= 0.1)
      ipaddress (>= 0.5)
    fog-dnsimple (1.0.0)
      fog-core (~> 1.38)
      fog-json (~> 1.0)
    fog-dynect (0.0.3)
      fog-core
      fog-json
      fog-xml
    fog-ecloud (0.3.0)
      fog-core
      fog-xml
    fog-google (0.1.0)
      fog-core
      fog-json
      fog-xml
    fog-json (1.0.2)
      fog-core (~> 1.0)
      multi_json (~> 1.10)
    fog-local (0.3.1)
      fog-core (~> 1.27)
    fog-openstack (0.1.21)
      fog-core (>= 1.40)
      fog-json (>= 1.0)
      ipaddress (>= 0.8)
    fog-powerdns (0.1.1)
      fog-core (~> 1.27)
      fog-json (~> 1.0)
      fog-xml (~> 0.1)
    fog-profitbricks (3.0.0)
      fog-core (~> 1.42)
      fog-json (~> 1.0)
    fog-rackspace (0.1.5)
      fog-core (>= 1.35)
      fog-json (>= 1.0)
      fog-xml (>= 0.1)
      ipaddress (>= 0.8)
    fog-radosgw (0.0.5)
      fog-core (>= 1.21.0)
      fog-json
      fog-xml (>= 0.0.1)
    fog-riakcs (0.1.0)
      fog-core
      fog-json
      fog-xml
    fog-sakuracloud (1.7.5)
      fog-core
      fog-json
    fog-serverlove (0.1.2)
      fog-core
      fog-json
    fog-softlayer (1.1.4)
      fog-core
      fog-json
    fog-storm_on_demand (0.1.1)
      fog-core
      fog-json
    fog-terremark (0.1.0)
      fog-core
      fog-xml
    fog-vmfusion (0.1.0)
      fission
      fog-core
    fog-voxel (0.1.0)
      fog-core
      fog-xml
    fog-vsphere (1.10.0)
      fog-core
      rbvmomi (~> 1.9)
    fog-xenserver (0.3.0)
      fog-core
      fog-xml
    fog-xml (0.1.3)
      fog-core
      nokogiri (>= 1.5.11, < 2.0.0)
    font-awesome-rails (4.2.0.0)
      railties (>= 3.2, < 5.0)
    foreman (0.78.0)
      thor (~> 0.19.1)
    formatador (0.2.5)
    gh (0.14.0)
      addressable
      backports
      faraday (~> 0.8)
      multi_json (~> 1.0)
      net-http-persistent (>= 2.7)
      net-http-pipeline
    globalid (0.3.7)
      activesupport (>= 4.1.0)
    guard (2.14.0)
      formatador (>= 0.2.4)
      listen (>= 2.7, < 4.0)
      lumberjack (~> 1.0)
      nenv (~> 0.1)
      notiffany (~> 0.0)
      pry (>= 0.9.12)
      shellany (~> 0.0)
      thor (>= 0.18.1)
    guard-bundler (2.1.0)
      bundler (~> 1.0)
      guard (~> 2.2)
      guard-compat (~> 1.1)
    guard-compat (1.2.1)
    guard-jasmine-rails (1.1.4)
      guard (>= 2.0)
    guard-jshintrb (1.1.0)
      guard (~> 2.0)
      jshintrb
    guard-livereload (2.4.0)
      em-websocket (~> 0.5)
      guard (~> 2.8)
      multi_json (~> 1.8)
    guard-rspec (4.7.3)
      guard (~> 2.1)
      guard-compat (~> 1.1)
      rspec (>= 2.99.0, < 4.0)
    guard-rubocop (1.2.0)
      guard (~> 2.0)
      rubocop (~> 0.20)
    guard-sheller (1.0.2)
      guard (>= 2.0)
    haml (4.0.7)
      tilt
    high_voltage (2.2.1)
    highline (1.7.8)
    html2haml (2.1.0)
      erubis (~> 2.7.0)
      haml (~> 4.0)
      nokogiri (>= 1.6.0)
      ruby_parser (~> 3.5)
    http_parser.rb (0.6.0)
    humanize (1.3.0)
    i18n (0.7.0)
    icalendar (2.4.1)
    inflecto (0.0.2)
    ipaddress (0.8.3)
    jasmine-core (2.1.3)
    jasmine-rails (0.10.6)
      jasmine-core (>= 1.3, < 3.0)
      phantomjs
      railties (>= 3.1.0)
      sprockets-rails
    jquery-rails (4.0.3)
      rails-dom-testing (~> 1.0)
      railties (>= 4.2.0)
      thor (>= 0.14, < 2.0)
    jshintrb (0.2.4)
      execjs
      multi_json (>= 1.3)
      rake
    json (1.8.6)
    kaminari (0.17.0)
      actionpack (>= 3.0.0)
      activesupport (>= 3.0.0)
    launchy (2.4.3)
      addressable (~> 2.3)
    listen (3.1.5)
      rb-fsevent (~> 0.9, >= 0.9.4)
      rb-inotify (~> 0.9, >= 0.9.7)
      ruby_dep (~> 1.2)
    loofah (2.0.3)
      nokogiri (>= 1.5.9)
    lumberjack (1.0.11)
    mail (2.6.4)
      mime-types (>= 1.16, < 4)
    method_source (0.8.2)
    mime-types (3.1)
      mime-types-data (~> 3.2015)
    mime-types-data (3.2016.0521)
    mini_portile2 (2.1.0)
    minitest (5.10.1)
    mixpanel-ruby (1.6.0)
    momentjs-rails (2.15.1)
      railties (>= 3.1)
    multi_json (1.12.1)
    multipart-post (2.0.0)
    neat (1.8.0)
      sass (>= 3.3)
      thor (~> 0.19)
    nenv (0.3.0)
    net-http-persistent (2.9.4)
    net-http-pipeline (1.0.1)
    nokogiri (1.7.0.1)
      mini_portile2 (~> 2.1.0)
    normalize-rails (3.0.3)
    notiffany (0.1.1)
      nenv (~> 0.1)
      shellany (~> 0.0)
    octokit (3.7.0)
      sawyer (~> 0.6.0, >= 0.5.3)
    okcomputer (1.1.0)
    orm_adapter (0.5.0)
    parser (2.3.3.1)
      ast (~> 2.2)
    pg (0.18.1)
    phantomjs (1.9.8.0)
    placeholder-gem (3.0.2)
      railties (>= 3.1)
    powerpack (0.1.1)
    pry (0.10.4)
      coderay (~> 1.1.0)
      method_source (~> 0.8.1)
      slop (~> 3.4)
    pry-rails (0.3.2)
      pry (>= 0.9.10)
    pry-remote (0.1.8)
      pry (~> 0.9)
      slop (~> 3.0)
    puma (3.6.2)
    pundit (1.0.1)
      activesupport (>= 3.0.0)
    pundit-matchers (1.0.0)
      pundit (~> 1.0, >= 1.0.0)
      rspec (~> 3.0, >= 3.0.0)
      rspec-rails (~> 3.0, >= 3.0.0)
    pusher-client (0.6.0)
      json
      websocket (~> 1.0)
    rack (1.6.8)
    rack-protection (1.5.3)
      rack
    rack-test (0.6.3)
      rack (>= 1.0)
    rack-timeout (0.2.0)
    rails (4.2.7.1)
      actionmailer (= 4.2.7.1)
      actionpack (= 4.2.7.1)
      actionview (= 4.2.7.1)
      activejob (= 4.2.7.1)
      activemodel (= 4.2.7.1)
      activerecord (= 4.2.7.1)
      activesupport (= 4.2.7.1)
      bundler (>= 1.3.0, < 2.0)
      railties (= 4.2.7.1)
      sprockets-rails
    rails-assets-bootstrap (3.1.1)
      rails-assets-jquery (>= 1.9.0)
    rails-assets-bootstrap-datepicker (1.3.1)
      rails-assets-bootstrap (>= 3.0, < 4.0)
      rails-assets-jquery (>= 1.7.1)
    rails-assets-html5shiv (3.7.2)
    rails-assets-jasmine-jquery (2.0.4)
    rails-assets-jquery (1.11.2)
    rails-assets-jquery.slimscroll (1.3.3)
      rails-assets-jquery (>= 1.7)
    rails-assets-mediaelement (2.14.2)
    rails-assets-modernizr (2.8.3)
    rails-assets-respond (1.4.2)
    rails-console-tweaks (1.0.2)
      rails (>= 3.0)
    rails-deprecated_sanitizer (1.0.3)
      activesupport (>= 4.2.0.alpha)
    rails-dom-testing (1.0.8)
      activesupport (>= 4.2.0.beta, < 5.0)
      nokogiri (~> 1.6)
      rails-deprecated_sanitizer (>= 1.0.1)
    rails-html-sanitizer (1.0.3)
      loofah (~> 2.0)
    rails_12factor (0.0.3)
      rails_serve_static_assets
      rails_stdout_logging
    rails_serve_static_assets (0.0.3)
    rails_stdout_logging (0.0.3)
    railties (4.2.7.1)
      actionpack (= 4.2.7.1)
      activesupport (= 4.2.7.1)
      rake (>= 0.8.7)
      thor (>= 0.18.1, < 2.0)
    rainbow (2.2.1)
    rake (12.0.0)
    rb-fsevent (0.9.8)
    rb-inotify (0.9.7)
      ffi (>= 0.5.0)
    rbvmomi (1.11.2)
      builder (~> 3.0)
      json (>= 1.8)
      nokogiri (~> 1.5)
      trollop (~> 2.1)
    redis (3.3.3)
    responders (2.0.2)
      railties (>= 4.2.0.alpha, < 5)
    rqrcode (0.10.1)
      chunky_png (~> 1.0)
    rspec (3.5.0)
      rspec-core (~> 3.5.0)
      rspec-expectations (~> 3.5.0)
      rspec-mocks (~> 3.5.0)
    rspec-core (3.5.4)
      rspec-support (~> 3.5.0)
    rspec-expectations (3.5.0)
      diff-lcs (>= 1.2.0, < 2.0)
      rspec-support (~> 3.5.0)
    rspec-lintable (1.0.1)
      jshintrb
      rspec
    rspec-mocks (3.5.0)
      diff-lcs (>= 1.2.0, < 2.0)
      rspec-support (~> 3.5.0)
    rspec-rails (3.5.2)
      actionpack (>= 3.0)
      activesupport (>= 3.0)
      railties (>= 3.0)
      rspec-core (~> 3.5.0)
      rspec-expectations (~> 3.5.0)
      rspec-mocks (~> 3.5.0)
      rspec-support (~> 3.5.0)
    rspec-support (3.5.0)
    rubocop (0.47.1)
      parser (>= 2.3.3.1, < 3.0)
      powerpack (~> 0.1)
      rainbow (>= 1.99.1, < 3.0)
      ruby-progressbar (~> 1.7)
      unicode-display_width (~> 1.0, >= 1.0.1)
    ruby-progressbar (1.8.1)
    ruby_dep (1.3.1)
    ruby_parser (3.8.4)
      sexp_processor (~> 4.1)
    rugged (0.21.4)
    safe_yaml (1.0.4)
    sass (3.4.23)
    sass-rails (5.0.6)
      railties (>= 4.0.0, < 6)
      sass (~> 3.1)
      sprockets (>= 2.8, < 4.0)
      sprockets-rails (>= 2.0, < 4.0)
      tilt (>= 1.1, < 3)
    sawyer (0.6.0)
      addressable (~> 2.3.5)
      faraday (~> 0.8, < 0.10)
    selectize-rails (0.12.3)
    sexp_processor (4.8.0)
    shellany (0.0.1)
    shoulda-matchers (2.7.0)
      activesupport (>= 3.0.0)
    sidekiq (4.2.10)
      concurrent-ruby (~> 1.0)
      connection_pool (~> 2.2, >= 2.2.0)
      rack-protection (>= 1.5.0)
      redis (~> 3.2, >= 3.2.1)
    simplecov (0.9.1)
      docile (~> 1.1.0)
      multi_json (~> 1.0)
      simplecov-html (~> 0.8.0)
    simplecov-html (0.8.0)
    slop (3.6.0)
    spring (1.2.0)
    spring-commands-rspec (1.0.4)
      spring (>= 0.9.1)
    sprockets (3.7.1)
      concurrent-ruby (~> 1.0)
      rack (> 1, < 3)
    sprockets-rails (3.2.0)
      actionpack (>= 4.0)
      activesupport (>= 4.0)
      sprockets (>= 3.0.0)
    terminal-notifier (1.6.2)
    terminal-notifier-guard (1.6.4)
    thegarage-gitx (2.12.0)
      octokit
      rugged (~> 0.21.0)
      thor
    thor (0.19.4)
    thread_safe (0.3.5)
    tilt (1.4.1)
    timecop (0.7.1)
    travis (1.6.11)
      addressable (~> 2.3)
      backports
      faraday (~> 0.9)
      faraday_middleware (~> 0.9)
      gh (~> 0.13)
      highline (~> 1.6)
      launchy (~> 2.1)
      pry (~> 0.9)
      pusher-client (~> 0.4)
      typhoeus (~> 0.6, >= 0.6.8)
    trollop (2.1.2)
    typhoeus (0.7.0)
      ethon (>= 0.7.1)
    tzinfo (1.2.2)
      thread_safe (~> 0.1)
    uglifier (2.7.0)
      execjs (>= 0.3.0)
      json (>= 1.8.0)
    unicode-display_width (1.1.3)
    vcr (2.9.3)
    warden (1.2.3)
      rack (>= 1.0)
    webmock (1.20.4)
      addressable (>= 2.3.6)
      crack (>= 0.3.2)
    websocket (1.2.1)
    wisper (1.6.0)
    xml-simple (1.1.5)
    xpath (2.0.0)
      nokogiri (~> 1.3)

PLATFORMS
  ruby

DEPENDENCIES
  administrate (~> 0.2.2)
  better_errors
  binding_of_caller
  bourbon (= 4.2.7)
  brakeman
  bugsnag
  bundler-audit
  bundler-reorganizer
  bundler-updater
  capybara
  carrierwave
  coffee-script
  devise!
  dotenv-rails
  dynamic_form
  email_preview
  email_spec
  email_validator
  eventmachine (~> 1.0.4)
  factory_girl_rails
  factory_girl_rspec
  filterrific (~> 4.0)
  fog
  font-awesome-rails
  foreman
  guard
  guard-bundler
  guard-jasmine-rails
  guard-jshintrb
  guard-livereload
  guard-rspec
  guard-rubocop
  guard-sheller
  haml (~> 4.0.3)
  high_voltage
  html2haml
  humanize
  icalendar
  jasmine-rails
  jquery-rails
  jshintrb
  kaminari
  mixpanel-ruby
  okcomputer
  pg
  placeholder-gem
  pry-rails
  pry-remote
  puma
  pundit (~> 1.0.0)
  pundit-matchers (~> 1.0.0)
  rack-timeout
  rails (= 4.2.7.1)
  rails-assets-bootstrap (= 3.1.1)
  rails-assets-bootstrap-datepicker!
  rails-assets-html5shiv!
  rails-assets-jasmine-jquery
  rails-assets-jquery (~> 1.11.0)!
  rails-assets-jquery.slimscroll!
  rails-assets-mediaelement (= 2.14.2)!
  rails-assets-modernizr!
  rails-assets-respond!
  rails-console-tweaks
  rails_12factor
  rqrcode
  rspec-core
  rspec-lintable
  rspec-rails (= 3.5.2)
  rubocop
  sass (~> 3.4.0)
  sass-rails (~> 5.0.0)
  shoulda-matchers
  sidekiq (= 4.2.10)
  simplecov
  spring
  spring-commands-rspec
  terminal-notifier
  terminal-notifier-guard
  thegarage-gitx
  timecop
  travis
  uglifier (>= 1.3.0)
  vcr
  webmock
  wisper

RUBY VERSION
   ruby 2.3.3p222

BUNDLED WITH
   1.16.1

Answer 1

试试这些东西：

• 检查您的数据库yml文件，它可能需要sqlite
• 添加特定需要的pg gem版本，如下所示：

group :production do gem 'pg', '~> 0.20' end

• git grep sqlite，，查看是否有sqlite

的残留物

Answer 2

尝试将mailcatcher和sqlite3移到gem文件的开发部分下。

group :development do
  gem 'mailcatcher'
  gem 'sqlite3'
  ....
end

因为heroku将您的环境作为生产环境运行，并且不喜欢在生产/公共部分中使用开发宝石，例如sqlite3。