herokuのコマンドでエラーが出る

herokuでアプリをデプロイしたいのですがエラーが出てしまいます
heroku run rake db:migrate
を入力すると
bash: rake: command not found
と返ってきてしまいます

git push heroku master
のコマンドの段階で
remote: Important: You may need to add a javascript runtime to your Gemfile in order for bootstrap's LESS files to compile to CSS.
remote: **********************************************
remote: ExecJS supports these runtimes:
remote: therubyracer - Google V8 embedded within Ruby
remote: therubyrhino - Mozilla Rhino embedded within JRuby
remote: Node.js
remote: Apple JavaScriptCore - Included with Mac OS X
remote: Microsoft Windows Script Host (JScript)
remote: **********************************************
remote: Bundle completed (31.93s)
remote: Cleaning up the bundler cache.
remote: -----> Detecting rake tasks
remote: -----> Preparing app for Rails asset pipeline
remote: Running: rake assets:precompile
remote: DEPRECATION WARNING: The configuration option config.serve_static_assets has been renamed to config.serve_static_files to clarify its role (it merely enables serving everything in the public folder and is unrelated to the asset pipeline). The serve_static_assets alias will be removed in Rails 5.0. Please migrate your configuration files accordingly. (called from block in <top (required)> at /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/config/environments/production.rb:80)
remote: I, [2016-12-24T05:45:41.158728 #1614] INFO -- : Writing /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/public/assets/glyphicons-halflings-regular-bdc10d85fe0e89db7aeb7c9c463f6f08.eot
remote: I, [2016-12-24T05:45:41.160507 #1614] INFO -- : Writing /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/public/assets/glyphicons-halflings-regular-96dc98460ecc572871ec6350ace02c7c.svg
remote: I, [2016-12-24T05:45:41.162060 #1614] INFO -- : Writing /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/public/assets/glyphicons-halflings-regular-d376c5b4f6835ec55b40bcc462eb6705.ttf
remote: I, [2016-12-24T05:45:41.163571 #1614] INFO -- : Writing /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/public/assets/glyphicons-halflings-regular-b9c57dc2d5cda4c8cd3573d0be57526b.woff
remote: I, [2016-12-24T05:45:41.165072 #1614] INFO -- : Writing /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/public/assets/glyphicons-halflings-regular-0a010165d0990374d0630e365850c046.woff2
remote: I, [2016-12-24T05:45:47.013651 #1614] INFO -- : Writing /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/public/assets/application-d61483ed6254c8a7344da916b2658873.js
remote: rake aborted!
remote: Sass::SyntaxError: Invalid CSS after "...":3,"sources":[": expected "|", was ""bootstrap-them..."
remote: (in /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/app/assets/stylesheets/application.css)
remote: (sass):589
remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sass-3.2.19/lib/sass/scss/parser.rb:1147:in expected' remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sass-3.2.19/lib/sass/scss/parser.rb:1085:in expected'
remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sass-3.2.19/lib/sass/scss/parser.rb:1080:in tok!' remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sass-3.2.19/lib/sass/scss/parser.rb:785:in attrib_name!'
remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sass-3.2.19/lib/sass/scss/parser.rb:753:in attrib' remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sass-3.2.19/lib/sass/scss/parser.rb:672:in simple_selector_sequence'
remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sass-3.2.19/lib/sass/scss/parser.rb:646:in _selector' remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sass-3.2.19/lib/sass/scss/parser.rb:619:in selector'
remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sass-3.2.19/lib/sass/scss/parser.rb:603:in selector_sequence' remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sass-3.2.19/lib/sass/scss/parser.rb:528:in ruleset'
remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sass-3.2.19/lib/sass/scss/parser.rb:591:in block in declaration_or_ruleset' remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sass-3.2.19/lib/sass/scss/parser.rb:1123:in call'
remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sass-3.2.19/lib/sass/scss/parser.rb:1123:in rethrow' remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sass-3.2.19/lib/sass/scss/parser.rb:592:in declaration_or_ruleset'
remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sass-3.2.19/lib/sass/scss/parser.rb:554:in block_child' remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sass-3.2.19/lib/sass/scss/parser.rb:543:in block_contents'
remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sass-3.2.19/lib/sass/scss/parser.rb:535:in block' remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sass-3.2.19/lib/sass/scss/parser.rb:529:in ruleset'
remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sass-3.2.19/lib/sass/scss/parser.rb:553:in block_child' remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sass-3.2.19/lib/sass/scss/parser.rb:546:in block_contents'
remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sass-3.2.19/lib/sass/scss/parser.rb:82:in stylesheet' remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sass-3.2.19/lib/sass/scss/parser.rb:27:in parse'
remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sass-3.2.19/lib/sass/engine.rb:342:in _to_tree' remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sass-3.2.19/lib/sass/engine.rb:315:in _render'
remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sass-3.2.19/lib/sass/engine.rb:262:in render' remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sprockets-2.11.0/lib/sprockets/sass_compressor.rb:24:in evaluate'
remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/tilt-1.4.1/lib/tilt/template.rb:103:in render' remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sprockets-2.11.0/lib/sprockets/context.rb:197:in block in evaluate'
remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sprockets-2.11.0/lib/sprockets/context.rb:194:in each' remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sprockets-2.11.0/lib/sprockets/context.rb:194:in evaluate'
remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sprockets-2.11.0/lib/sprockets/bundled_asset.rb:25:in initialize' remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sprockets-2.11.0/lib/sprockets/base.rb:377:in new'
remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sprockets-2.11.0/lib/sprockets/base.rb:377:in build_asset' remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sprockets-2.11.0/lib/sprockets/index.rb:94:in block in build_asset'
remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sprockets-2.11.0/lib/sprockets/caching.rb:58:in cache_asset' remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sprockets-2.11.0/lib/sprockets/index.rb:93:in build_asset'
remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sprockets-2.11.0/lib/sprockets/base.rb:287:in find_asset' remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/ruby/2.2.0/gems/sprockets-2.11.0/lib/sprockets/index.rb:61:in find_asset'
remote: /tmp/build_ee6ac22c642cc3fc710ac77da70f3e51/vendor/bundle/