NameError：未初始化的常量Dotenv，同时将rails应用程序推送到heroku [英] NameError: uninitialized constant Dotenv while pushing rails app to heroku

问题描述

我使用dotenv存储环境变量，并且自从我将它包含在gemfile中后，我无法将其推送到heroku。我收到以下错误： -

  remote：----->安装node-v6.10.0-linux-x64 
 remote：----->检测rake任务
 remote：sh：2：语法错误：未终止的带引号的字符串
 remote：sh：2：语法错误：未终止的带引号的字符串
 remote：！ 
 remote：！无法检测到rake任务
 remote：！确保你可以针对你的应用运行'$ bundle exec rake -P` 
 remote：！并使用您的Gemfile的生产组。 
 remote：！耙子中止了！ 
 remote：！ NameError：未初始化的常量Dotenv 
 remote：！ /tmp/build_5437bc300afb80cfa46b1111bb960f46/config/application.rb:17:in`< top（required）>'
 remote：！ / tmp / build_5437bc300afb80cfa46b1111bb960f46 / Rakefile：4：在`require_relative'
 remote：！ / tmp / build_5437bc300afb80cfa46b1111bb960f46 / Rakefile：4：在<< top（required）>'
  

我是如何在我的gemfile中包含dotenv的： -

  gem'dotenv-rails'，：require => 'dotenv / rails-now'
  

我也尝试在application.rb文件中添加以下内容：
$ b $ pre $ Bundler.require（* Rails.groups）

Dotenv :: Railtie.load

HOSTNAME = ENV ['HOSTNAME']


仍然不起作用。

我不知道这两行是否说未端接的引用字符串可能是导致dotenv无法加载的一些无关的问题。我查了一下并检查了heroku配置文件，看看变量中是否有什么不对劲，但它们都很好。在添加dotenv到gemfile之前，我能够推动。

我试着运行bundle install，重新启动服务器，删除gemfile.lock并运行bundle install，我在这里查看了这个问题，并尝试了由于DOTENV未初始化的常量错误，无法推送到Heroku

仍然没有运气。

PS - 我试图实施recaptcha，建议使用最佳实践dotenv将recaptcha的site_key和secret_key存储为env vars。因此，我试图让这个工作。

解决方案

我面临同样的问题，并能够解决它与以下。
$ b <1> 在中添加 dotenv-rails Gemfile 仅适用于特定环境：

 ＃Gemfile 
 group：development，：test do 
 gem'dotenv-rails'
 end 
  

2）只有当环境符合你的 Gemfile 组：
时才运行 Dotenv

 ＃config / application.rb 
 Bundler.require（* Rails.groups）
 if ['development'，'test']。包括？ ENV ['RAILS_ENV'] 
 Dotenv :: Railtie.load 
 end 
  

I'm using dotenv to store environment variables and ever since I include it in the gemfile I cannot push it to heroku. I'm getting the following error:-

remote: -----> Installing node-v6.10.0-linux-x64
remote: -----> Detecting rake tasks
remote: sh: 2: Syntax error: Unterminated quoted string
remote: sh: 2: Syntax error: Unterminated quoted string
remote:  !
remote:  !     Could not detect rake tasks
remote:  !     ensure you can run `$ bundle exec rake -P` against your app
remote:  !     and using the production group of your Gemfile.
remote:  !     rake aborted!
remote:  !     NameError: uninitialized constant Dotenv
remote:  !     /tmp/build_5437bc300afb80cfa46b1111bb960f46/config/application.rb:17:in `<top (required)>'
remote:  !     /tmp/build_5437bc300afb80cfa46b1111bb960f46/Rakefile:4:in `require_relative'
remote:  !     /tmp/build_5437bc300afb80cfa46b1111bb960f46/Rakefile:4:in `<top (required)>'

This is how I'm including dotenv in my gemfile:-

gem 'dotenv-rails', :require => 'dotenv/rails-now'

I have tried adding the following in the application.rb file as well:-

Bundler.require(*Rails.groups)

Dotenv::Railtie.load

HOSTNAME = ENV['HOSTNAME']

still doesn't work.

I don't know if those two lines that say "unterminated quoted string" could be some unrelated issue leading to the dotenv not loading. I looked it up and checked heroku config to see if there was something amiss in the variables but they all seem fine. I was able to push before I added the dotenv to gemfile.

I tried running bundle install, restarting server, deleting gemfile.lock and running bundle install and I looked this issue up on here and tried solutions suggested in Can't push to Heroku because of DOTENV uninitialized constant error

Still no luck.

PS - I'm trying to implement recaptcha and it is suggested best practice to use dotenv to store the site_key and secret_key for recaptcha as env vars. Hence I'm trying to get this to work.

解决方案

I faced the same issue and was able to solve it with a following.

1) Add dotenv-rails in the Gemfile only for specific environments:

# Gemfile
group :development, :test do
  gem 'dotenv-rails'
end

2) And run Dotenv stuff only if the environment matches your Gemfile group:

# config/application.rb
Bundler.require(*Rails.groups)
if ['development', 'test'].include? ENV['RAILS_ENV']
  Dotenv::Railtie.load
end

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