每当我尝试git push herou master时，我不断得到的确切结果是这样的：
There was an error parsing your Gemfile, we cannot continue
You cannot specify the same gem twice with different version requirements.
You specified: spring (>= 0) and spring (= 1.1.3)
以下是我的宝石文件的样子：
source 'https://rubygems.org'
# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '4.1.8'
# Use SCSS for stylesheets
gem 'sass-rails', '~> 4.0.3'
# Use Uglifier as compressor for JavaScript assets
gem 'uglifier', '>= 1.3.0'
# Use CoffeeScript for .js.coffee assets and views
gem 'coffee-rails', '~> 4.0.0'
# See https://github.com/sstephenson/execjs#readme for more supported runtimes
# gem 'therubyracer', platforms: :ruby
# 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
# Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
#gem 'spring', group: :development
group :development, :test do
gem 'sqlite3', '1.3.9'
gem 'byebug', '3.4.0'
gem 'web-console', '2.0.0.beta3'
gem 'spring', '1.1.3'
end
group :production do
gem 'pg', '0.17.1'
gem 'rails_12factor', '0.0.2'
end
# Use ActiveModel has_secure_password
# gem 'bcrypt', '~> 3.1.7'
# Use unicorn as the app server
# gem 'unicorn'
# Use Capistrano for deployment
# gem 'capistrano-rails', group: :development
# Use debugger
# gem 'debugger', group: [:development, :test]
我想改变春天的版本，这样我就可以推到heroku，但我不知道在哪里改变。
我尝试过谷歌搜索，并在堆栈溢出上搜索错误以查找重复问题......但没有成功。
编辑：这是我的Gemfile.lock：
GEM
remote: https://rubygems.org/
specs:
actionmailer (4.1.8)
actionpack (= 4.1.8)
actionview (= 4.1.8)
mail (~> 2.5, >= 2.5.4)
actionpack (4.1.8)
actionview (= 4.1.8)
activesupport (= 4.1.8)
rack (~> 1.5.2)
rack-test (~> 0.6.2)
actionview (4.1.8)
activesupport (= 4.1.8)
builder (~> 3.1)
erubis (~> 2.7.0)
activemodel (4.1.8)
activesupport (= 4.1.8)
builder (~> 3.1)
activerecord (4.1.8)
activemodel (= 4.1.8)
activesupport (= 4.1.8)
arel (~> 5.0.0)
activesupport (4.1.8)
i18n (~> 0.6, >= 0.6.9)
json (~> 1.7, >= 1.7.7)
minitest (~> 5.1)
thread_safe (~> 0.1)
tzinfo (~> 1.1)
arel (5.0.1.20140414130214)
binding_of_caller (0.7.3.pre1)
debug_inspector (>= 0.0.1)
builder (3.2.2)
byebug (3.4.0)
columnize (~> 0.8)
debugger-linecache (~> 1.2)
slop (~> 3.6)
coffee-rails (4.0.1)
coffee-script (>= 2.2.0)
railties (>= 4.0.0, < 5.0)
coffee-script (2.3.0)
coffee-script-source
execjs
coffee-script-source (1.8.0)
columnize (0.9.0)
debug_inspector (0.0.2)
debugger-linecache (1.2.0)
erubis (2.7.0)
execjs (2.2.2)
hike (1.2.3)
i18n (0.7.0)
jbuilder (2.2.6)
activesupport (>= 3.0.0, < 5)
multi_json (~> 1.2)
jquery-rails (3.1.2)
railties (>= 3.0, < 5.0)
thor (>= 0.14, < 2.0)
json (1.8.1)
mail (2.6.3)
mime-types (>= 1.16, < 3)
mime-types (2.4.3)
minitest (5.5.0)
multi_json (1.10.1)
pg (0.17.1)
rack (1.5.2)
rack-test (0.6.2)
rack (>= 1.0)
rails (4.1.8)
actionmailer (= 4.1.8)
actionpack (= 4.1.8)
actionview (= 4.1.8)
activemodel (= 4.1.8)
activerecord (= 4.1.8)
activesupport (= 4.1.8)
bundler (>= 1.3.0, < 2.0)
railties (= 4.1.8)
sprockets-rails (~> 2.0)
rails_12factor (0.0.2)
rails_serve_static_assets
rails_stdout_logging
rails_serve_static_assets (0.0.3)
rails_stdout_logging (0.0.3)
railties (4.1.8)
actionpack (= 4.1.8)
activesupport (= 4.1.8)
rake (>= 0.8.7)
thor (>= 0.18.1, < 2.0)
rake (10.4.2)
rdoc (4.2.0)
json (~> 1.4)
sass (3.2.19)
sass-rails (4.0.5)
railties (>= 4.0.0, < 5.0)
sass (~> 3.2.2)
sprockets (~> 2.8, < 3.0)
sprockets-rails (~> 2.0)
sdoc (0.4.1)
json (~> 1.7, >= 1.7.7)
rdoc (~> 4.0)
slop (3.6.0)
spring (1.1.3)
sprockets (2.12.3)
hike (~> 1.2)
multi_json (~> 1.0)
rack (~> 1.0)
tilt (~> 1.1, != 1.3.0)
sprockets-rails (2.2.2)
actionpack (>= 3.0)
activesupport (>= 3.0)
sprockets (>= 2.8, < 4.0)
sqlite3 (1.3.9)
thor (0.19.1)
thread_safe (0.3.4)
tilt (1.4.1)
turbolinks (2.5.3)
coffee-rails
tzinfo (1.2.2)
thread_safe (~> 0.1)
uglifier (2.6.0)
execjs (>= 0.3.0)
json (>= 1.8.0)
web-console (2.0.0.beta3)
activemodel (~> 4.0)
binding_of_caller (= 0.7.3.pre1)
railties (~> 4.0)
sprockets-rails (>= 2.0, < 4.0)
PLATFORMS
ruby
DEPENDENCIES
byebug (= 3.4.0)
coffee-rails (~> 4.0.0)
jbuilder (~> 2.0)
jquery-rails
pg (= 0.17.1)
rails (= 4.1.8)
rails_12factor (= 0.0.2)
sass-rails (~> 4.0.3)
sdoc (~> 0.4.0)
spring (= 1.1.3)
sqlite3 (= 1.3.9)
turbolinks
uglifier (>= 1.3.0)
web-console (= 2.0.0.beta3)
将您的 gemfile 更改为此
gem 'spring', '>=0.0.1'
然后在 Rails 控制台的 App 目录中运行bundle install。 然后尝试重新部署它
如本回答所述：
插件中的所有宝石文件都与通用宝石文件合并
检查您的插件之一的 gemfile 是否确实具有 spring (>= 0) 指令。