When deploying heroku app I get push rejected error (Precompiling assets failed)

Question

This is app that I am trying to push on heroku: https://github.com/kunokdev/flightmap however I get Precompiling assets failed error and Push rejected to ... log. What might cause this?

remote:        /tmp/build_b9c70fb95f66f6b57f7d5868507a42de/vendor/bundle/ruby/2.2.0/gems/sprockets-rails-3.0.4/lib/sprockets/rails/task.rb:67:in `block (2 levels) in define'
remote:        Tasks: TOP => assets:precompile
remote:        (See full trace by running task with --trace)
remote:  !
remote:  !     Precompiling assets failed.
remote:  !
remote: 
remote:  !     Push rejected, failed to compile Ruby app
remote: 
remote: Verifying deploy...
remote: 
remote: !   Push rejected to flightmap.
remote: 
To ssh://git@heroku.com/flightmap.git
 ! [remote rejected] master -> master (pre-receive hook declined)
error: failed to push some refs to 'ssh://git@heroku.com/flightmap.git'
kunok@Kunok:~/dev/flightmap$

This is my gemfile:

source 'https://rubygems.org'


gem 'rails', '4.2.2'
# Use SCSS for stylesheets
gem 'sass-rails', '~> 5.0'
# Use Uglifier as compressor for JavaScript assets
gem 'uglifier', '>= 1.3.0'
# Use jquery as the JavaScript library
gem 'jquery-rails'
# Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks
gem 'turbolinks'
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '~> 2.0'
# bundle exec rake doc:rails generates the API under doc/api.
gem 'sdoc', '~> 0.4.0', group: :doc
# rake
gem 'rake', '11.1.2'
# csv reader
gem 'smarter_csv'
# bower rails
gem 'bower-rails'
# angular templates
gem 'angular-rails-templates'
# angular material
gem 'rails-angular-material'
# ionicons
gem 'ionicons-rails'
# Get user location info
gem 'geocoder'

group :development, :test do
  # Call 'byebug' anywhere in the code to stop execution and get a debugger console
  gem 'byebug'
  # Use sqlite3 as the database for Active Record
  gem 'sqlite3'
end

  # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
  gem 'spring'

group :development do
  # Access an IRB console on exception pages or by using <%= console %> in views
  gem 'web-console', '~> 2.0'
end

group :test do
  gem 'minitest-reporters', '1.0.5'
  gem 'mini_backtrace',     '0.1.3'
  gem 'guard-minitest',     '2.3.1'
end

group :production do
  gem 'pg'
  gem 'rails_12factor'
end

ruby "2.2.1"

See https://devcenter.heroku.com/articles/rails-4-asset-pipeline; particularly the Debug section. — Jeremiah Heller, Apr 08 '16 at 16:39
I found this [SO post](http://stackoverflow.com/questions/7986139/git-error-when-trying-to-push-pre-receive-hook-declined) that may be related. — Rodrigo Martinez, Apr 08 '16 at 16:44
try this one `RAILS_ENV=production bundle exec rake assets:precompile` — 7urkm3n, Apr 08 '16 at 18:18
@7urkm3n this worked, but now app is a blank page, what could be the issue here? — Kunok, Apr 08 '16 at 18:53
@Kunok I think u have problems in assets file or routes. check it. — 7urkm3n, Apr 08 '16 at 21:01

score 0 · Accepted Answer · answered Apr 11 '16 at 19:44

0

As @7urkm3n suggested terminal command RAILS_ENV=production bundle exec rake assets:precompile fixes the problem.

answered Apr 11 '16 at 19:44

Kunok

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When deploying heroku app I get push rejected error (Precompiling assets failed)

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