ruby - Getting error while deploying rails app on heroku -

i m getting error while deploying app github on heroku ...

build log -->

-----> ruby app detected  -----> compiling ruby/rails  -----> using ruby version: ruby-2.2.0  -----> installing dependencies using bundler 1.11.2         running: bundle install --without development:test --path vendor/bundle --binstubs vendor/bundle/bin -j4 --deployment         fetching gem metadata https://rubygems.org/...........         fetching version metadata https://rubygems.org/...         fetching dependency metadata https://rubygems.org/..         installing json 1.8.3 native extensions         installing i18n 0.7.0         installing rake 10.5.0         installing minitest 5.8.3         installing thread_safe 0.3.5         installing builder 3.2.2         installing erubis 2.7.0         installing mini_portile2 2.0.0         installing rack 1.6.4         installing mime-types 2.99         installing sass 3.4.21         installing thor 0.19.1         installing coffee-script-source 1.10.0         installing formtastic_i18n 0.6.0         using bundler 1.11.2         installing arel 6.0.3         installing execjs 2.6.0         installing concurrent-ruby 1.0.0         installing tilt 1.4.1         installing bcrypt 3.1.7 native extensions         installing cancan 1.6.10         installing orm_adapter 0.5.0         installing multi_json 1.11.2         installing request_store 1.3.0         installing puma 2.16.0 native extensions         installing rails_serve_static_assets 0.0.4         installing rails_stdout_logging 0.0.4         installing tzinfo 1.2.2         installing rack-test 0.6.3         installing nokogiri 1.6.7.1 native extensions         installing warden 1.2.6         installing rdoc 4.2.1         installing mail 2.6.3         installing bourbon 4.2.7         installing coffee-script 2.4.1         installing uglifier 2.5.3         installing autoprefixer-rails 6.3.1         installing sprockets 3.5.2         installing rails_12factor 0.0.2         installing sdoc 0.4.0         installing activesupport 4.2.2         installing bootstrap-sass 3.3.6         installing rails-deprecated_sanitizer 1.0.3         installing globalid 0.3.6         installing arbre 1.0.3         installing activemodel 4.2.2         installing jbuilder 2.2.3         installing pundit 1.1.0         installing activejob 4.2.2         installing activerecord 4.2.2         installing polyamorous 1.3.0         installing rails-dom-testing 1.0.7         installing loofah 2.0.3         installing rails-html-sanitizer 1.0.2         installing actionview 4.2.2         installing actionpack 4.2.2         installing actionmailer 4.2.2         installing railties 4.2.2         installing formtastic 3.1.4         installing has_scope 0.6.0         installing sprockets-rails 3.0.0         installing kaminari 0.16.3         installing ransack 1.7.0         installing draper 2.1.0         installing coffee-rails 4.1.0         installing responders 2.1.1         installing jquery-ui-rails 5.0.5         installing jquery-rails 4.0.3         installing rails 4.2.2         installing turbolinks 2.3.0         installing sass-rails 5.0.2         installing inherited_resources 1.6.0         installing devise 3.5.6         installing activeadmin 1.0.0.pre2         bundle complete! 24 gemfile dependencies, 74 gems installed.         gems in groups development , test not installed.         bundled gems installed ./vendor/bundle.         post-install message rdoc:         depending on version of ruby, may need install ruby rdoc/ri data:         <= 1.8.6 : unsupported         = 1.8.7 : gem install rdoc-data; rdoc-data --install         = 1.9.1 : gem install rdoc-data; rdoc-data --install         >= 1.9.2 : nothing do! yay!         bundle completed (23.34s)         cleaning bundler cache.  sh: 2: syntax error: unterminated quoted string  sh: 2: syntax error: unterminated quoted string   !   !     not detect rake tasks   !     ensure can run `$ bundle exec rake -p` against app   !     , using production group of gemfile.   !     rake aborted!   !     bundler::gemrequireerror: there error while trying load gem 'activeadmin'.   !     /tmp/build_e5688395917c72f2956d14c05dd2fdf5/nischaynamdev-hostel_mess_pay-a993b86d6645abbdfb41cb6de99c6900648d588f/vendor/bundle/ruby/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:80:in `rescue in block (2 levels) in require'   !     /tmp/build_e5688395917c72f2956d14c05dd2fdf5/nischaynamdev-hostel_mess_pay-a993b86d6645abbdfb41cb6de99c6900648d588f/vendor/bundle/ruby/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:76:in `block (2 levels) in require'   !     /tmp/build_e5688395917c72f2956d14c05dd2fdf5/nischaynamdev-hostel_mess_pay-a993b86d6645abbdfb41cb6de99c6900648d588f/vendor/bundle/ruby/2.2.0/gems/bundler-1.11 

my production.rb file :

    rails.application.configure   # settings specified here take precedence on in config/application.rb.   # code not reloaded between requests.   config.cache_classes = true   config.force_ssl = true   config.serve_static_assets = true   # eager load code on boot. eager loads of rails ,   # application in memory, allowing both threaded web servers   # , relying on copy on write perform better.   # rake tasks automatically ignore option performance.   config.eager_load = true    # full error reports disabled , caching turned on.   config.consider_all_requests_local       = false   config.action_controller.perform_caching = true    # enable rack::cache put simple http cache in front of application   # add `rack-cache` gemfile before enabling this.   # large-scale production use, consider using caching reverse proxy   # nginx, varnish or squid.   # config.action_dispatch.rack_cache = true    # disable serving static files `/public` folder default since   # apache or nginx handles this.   config.serve_static_files = env['rails_serve_static_files'].present?    # compress javascripts , css.   config.assets.js_compressor = :uglifier   # config.assets.css_compressor = :sass    # not fallback assets pipeline if precompiled asset missed.   config.assets.compile =true    # asset digests allow set far-future http expiration dates on assets,   # yet still able expire them through digest params.   config.assets.digest = true    # `config.assets.precompile` , `config.assets.version` have moved config/initializers/assets.rb    # specifies header server uses sending files.   # config.action_dispatch.x_sendfile_header = 'x-sendfile' # apache   # config.action_dispatch.x_sendfile_header = 'x-accel-redirect' # nginx    # force access app on ssl, use strict-transport-security, , use secure cookies.   # config.force_ssl = true    # use lowest log level ensure availability of diagnostic information   # when problems arise.   config.log_level = :debug    # prepend log lines following tags.   # config.log_tags = [ :subdomain, :uuid ]    # use different logger distributed setups.   # config.logger = activesupport::taggedlogging.new(sysloglogger.new)    # use different cache store in production.   # config.cache_store = :mem_cache_store    # enable serving of images, stylesheets, , javascripts asset server.   # config.action_controller.asset_host = 'http://assets.example.com'    # ignore bad email addresses , not raise email delivery errors.   # set true , configure email server immediate delivery raise delivery errors.   # config.action_mailer.raise_delivery_errors = false    # enable locale fallbacks i18n (makes lookups locale fall   # i18n.default_locale when translation cannot found).   config.i18n.fallbacks = true    # send deprecation notices registered listeners.   config.active_support.deprecation = :notify    # use default logging formatter pid , timestamp not suppressed.   config.log_formatter = ::logger::formatter.new    # not dump schema after migrations.   config.active_record.dump_schema_after_migration = false   config.assets.precompile +=       %w( #{rails.root}/vendor/assets/stylesheets/active_admin.css.scss)   config.assets.precompile +=       %w( #{rails.root}/vendor/assets/javascripts/active_admin.js.coffee)    rails_env=production bundle exec rake assets:precompile    config.action_mailer.raise_delivery_errors = true   config.action_mailer.delivery_method = :smtp   host = 'messpay.herokuapp.com'   config.action_mailer.default_url_options = { host: host }   actionmailer::base.smtp_settings = {       :address        => 'smtp.sendgrid.net',       :port           => '587',       :authentication => :plain,       :user_name      => env['sendgrid_username'],       :password       => env['sendgrid_password'],       :domain         => 'heroku.com',       :enable_starttls_auto => true end 

rakefile

# add own tasks in files placed in lib/tasks ending in .rake, # example lib/tasks/capistrano.rake, , automatically available rake.  require file.expand_path('../config/application', __file__)  rails.application.load_tasks 

gemfile:

source 'https://rubygems.org' gem 'jquery-ui-rails'  gem 'activeadmin', '~> 1.0.0.pre2' gem 'devise' gem 'cancan' gem 'draper' gem 'pundit' gem 'rails',        '4.2.2' gem 'bcrypt',               '3.1.7' gem 'bootstrap-sass', '~> 3.3', '>= 3.3.6' gem 'sass-rails',   '5.0.2' gem 'uglifier',     '2.5.3' gem 'coffee-rails', '4.1.0' gem 'jquery-rails', '4.0.3' gem 'turbolinks',   '2.3.0' gem 'jbuilder',     '2.2.3' gem 'sdoc',         '0.4.0', group: :doc  group :development, :test   gem 'byebug',      '3.4.0'   gem 'web-console', '2.0.0.beta3'    gem 'spring',      '1.1.3' end  group :test   gem 'minitest-reporters', '~> 1.1', '>= 1.1.7'   gem 'mini_backtrace',     '0.1.3'   gem 'guard-minitest',     '2.3.1' end  group :production   gem 'rails_12factor', '0.0.2'   gem 'puma', '~> 2.16' end 

i have tried of precompiled command options can check production.rb build logs showing problem in active admin gem !

help me plz thxx

take @ gem file. appears have issue attempting load gem activeadmin production environment, start there, possibly upload view.

**after reviewing gemfile... think may ok.

so i'm thinking change config.assets.compile =true config.assets.compile = true add space in case causing problem. run bundle exec rake -p suggests in error itself. , try rake assets:precompile , see if solves problem. need run heroku run rake db:migrate too. had problem before heroku myself.