Gemfile.lock is corrupt, gem missing from the DEPENDENCIES section

Question

It says that my Gemfile.lock is corrupt. The exact message is "Your Gemfile.lock is corrupt. The following gem is missing from the DEPENDENCIES section: 'mini_portile2'" How would I go about fixing this? This is also my Gemfile.lock:

 GEM
      remote: https://rubygems.org/
      specs:
        actionmailer (4.2.6)
          actionpack (= 4.2.6)
          actionview (= 4.2.6)
          activejob (= 4.2.6)
          mail (~> 2.5, >= 2.5.4)
          rails-dom-testing (~> 1.0, >= 1.0.5)
        actionpack (4.2.6)
          actionview (= 4.2.6)
          activesupport (= 4.2.6)
          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 (4.2.6)
          activesupport (= 4.2.6)
          builder (~> 3.1)
          erubis (~> 2.7.0)
          rails-dom-testing (~> 1.0, >= 1.0.5)
          rails-html-sanitizer (~> 1.0, >= 1.0.2)
        activejob (4.2.6)
          activesupport (= 4.2.6)
          globalid (>= 0.3.0)
        activemodel (4.2.6)
          activesupport (= 4.2.6)
          builder (~> 3.1)
        activerecord (4.2.6)
          activemodel (= 4.2.6)
          activesupport (= 4.2.6)
          arel (~> 6.0)
        activesupport (4.2.6)
          i18n (~> 0.7)
          json (~> 1.7, >= 1.7.7)
          minitest (~> 5.1)
          thread_safe (~> 0.3, >= 0.3.4)
          tzinfo (~> 1.1)
        arel (6.0.3)
        binding_of_caller (0.7.2)
          debug_inspector (>= 0.0.1)
        builder (3.2.2)
        byebug (5.0.0)
          columnize (= 0.9.0)
        coffee-rails (4.1.0)
          coffee-script (>= 2.2.0)
          railties (>= 4.0.0, < 5.0)
        coffee-script (2.4.1)
          coffee-script-source
          execjs
        coffee-script-source (1.9.1.1)
        columnize (0.9.0)
        debug_inspector (0.0.2)
        erubis (2.7.0)
        execjs (2.6.0)
        globalid (0.3.6)
          activesupport (>= 4.1.0)
        i18n (0.7.0)
        jbuilder (2.3.1)
          activesupport (>= 3.0.0, < 5)
          multi_json (~> 1.2)
        jquery-rails (4.0.5)
          rails-dom-testing (~> 1.0)
          railties (>= 4.2.0)
          thor (>= 0.14, < 2.0)
        json (1.8.3)
        loofah (2.0.3)
          nokogiri (>= 1.5.9)
        mail (2.6.3)
          mime-types (>= 1.16, < 3)
        mime-types (2.6.1)
        minitest (5.8.4)
        multi_json (1.11.2)
        nokogiri (1.6.7.2)
        rack (1.6.4)
        rack-test (0.6.3)
          rack (>= 1.0)
        rails (4.2.6)
          actionmailer (= 4.2.6)
          actionpack (= 4.2.6)
          actionview (= 4.2.6)
          activejob (= 4.2.6)
          activemodel (= 4.2.6)
          activerecord (= 4.2.6)
          activesupport (= 4.2.6)
          bundler (>= 1.3.0, < 2.0)
          railties (= 4.2.6)
          sprockets-rails
        rails-deprecated_sanitizer (1.0.3)
          activesupport (>= 4.2.0.alpha)
        rails-dom-testing (1.0.6)
          activesupport (>= 4.2.0.beta, < 5.0)
          nokogiri (~> 1.6.0)
          rails-deprecated_sanitizer (>= 1.0.1)
        rails-html-sanitizer (1.0.3)
          loofah (~> 2.0)
        railties (4.2.6)
          actionpack (= 4.2.6)
          activesupport (= 4.2.6)
          rake (>= 0.8.7)
          thor (>= 0.18.1, < 2.0)
        rake (10.5.0)
        rdoc (4.2.1)
        sass (3.4.21)
        sass-rails (5.0.4)
          railties (>= 4.0.0, < 5.0)
          sass (~> 3.1)
          sprockets (>= 2.8, < 4.0)
          sprockets-rails (>= 2.0, < 4.0)
          tilt (>= 1.1, < 3)
        sdoc (0.4.1)
          json (~> 1.7, >= 1.7.7)
          rdoc (~> 4.0)
        spring (1.3.6)
        sprockets (3.3.0)
          rack (~> 1.0)
        sprockets-rails (2.3.2)
          actionpack (>= 3.0)
          activesupport (>= 3.0)
          sprockets (>= 2.8, < 4.0)
        sqlite3 (1.3.11)
        thor (0.19.1)
        thread_safe (0.3.5)
        tilt (2.0.1)
        turbolinks (2.5.3)
          coffee-rails
        tzinfo (1.2.2)
          thread_safe (~> 0.1)
        uglifier (2.7.2)
          execjs (>= 0.3.0)
          json (>= 1.8.0)
        web-console (2.2.1)
          activemodel (>= 4.0)
          binding_of_caller (>= 0.7.2)
          railties (>= 4.0)
          sprockets-rails (>= 2.0, < 4.0)

    PLATFORMS
      ruby

    DEPENDENCIES
      byebug
      coffee-rails (~> 4.1.0)
      jbuilder (~> 2.0)
      jquery-rails
      rails (= 4.2.6)
      sass-rails (~> 5.0)
      sdoc (~> 0.4.0)
      spring
      sqlite3
      turbolinks
      uglifier (>= 1.3.0)
      web-console (~> 2.0)
    BUNDLED WITH
       1.11.2

How would I go about fixing this, exactly? If you need anymore information, I'd be willing to provide it!

Answer 1

Delete the Gemfile.lock

and again do

bundle install