当我尝试将我的应用程序推送到Heroku时,我收到了以下回复:
fatal: 'heroku' does not appear to be a git repository
fatal: Could not read from remote repository.
Please make sure you have the correct access rights
and the repository exists.
我尝试了'heroku键:添加',但仍然会得到相同的结果.我已经为我的GitHub帐户安装了一个ssh密钥.
我有以下代码,我想让甲板阵列充满52个不同的卡.每当我运行代码并且卡片对象被警告时,它显示为"[对象对象]".
有人可以向我解释为什么会这样做并解决这个问题？
var suits = ["Clubs", "Diamonds", "Hearts", "Spades"];
var ranks = ["A", 2, 3, 4, 5, 6, 7, 8, 9, 10, "J", "Q", "K"];
var deck = [];
for (var i = 0; i < suits.length; i++) {
for (var j = 0; j < ranks.length; j++) {
var card = {rank: ranks[j], suit: suits[i]};
deck.push(card);
alert(card)
}
}
当我尝试运行时, heroku run rake db:migrate我收到此错误:
can't activate bcrypt-ruby (~> 3.0.0), already activated bcrypt-ruby-3.1.2. Make sure all dependencies are added to Gemfile.
我更新了我的Gemfile并指定了bcrypt的版本但是没有用.一切都在正确的分支上.
的Gemfile:
source 'https://rubygems.org'
ruby '2.0.0'
#ruby-gemset=railstutorial_rails_4_0
gem 'rails', '4.0.0'
gem 'sass-rails', '4.0.1'
gem 'uglifier', '2.1.1'
gem 'coffee-rails', '4.0.1'
gem 'jquery-rails', '3.0.4'
gem 'turbolinks', '1.1.1'
gem 'jbuilder', '1.0.2'
gem 'bootstrap-sass', github: 'thomas-mcdonald/bootstrap-sass', branch: '3'
gem 'bcrypt-ruby', '~> 3.1.2'
group :development, :test do
gem 'sqlite3', '1.3.8'
gem 'rspec-rails', '2.13.1'
end
group :test do
gem 'selenium-webdriver', '2.35.1'
gem 'capybara', '2.1.0' …我理解模型,视图和控制器在应用程序中扮演的不同角色,但它们是如何相互链接的,例如,简单的比较是在将JavaScript文件与HTML文件链接时,需要使用'src'引用标记.
自从学习Rails以来,我被告知他们是联系在一起的,但不是如何.
模型,视图和控制器是如何实际链接的,为什么MVC特别是Rails不需要'src'或类似的东西？
当我执行命令时:bundle exec rspec spec/我收到此错误:
值得注意的是: Unknown validator: 'LenghtValidator' (ArgumentError)
No DRb server is running. Running in local process instead ...
C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activemodel-4.0.0/lib/active_model/validations/validates.rb:116:in `rescue in b
lock in validates': Unknown validator: 'LenghtValidator' (ArgumentError)
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activemodel-4.0.0/lib/active_model/validations/validates.rb:113:in
`block in validates'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activemodel-4.0.0/lib/active_model/validations/validates.rb:109:in
`each'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activemodel-4.0.0/lib/active_model/validations/validates.rb:109:in
`validates'
from C:/Sites/rails/twitter/app/models/user.rb:4:in `<class:User>'
from C:/Sites/rails/twitter/app/models/user.rb:1:in `<top (required)>'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:228:in `req
uire'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:228:in `blo
ck in require'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:213:in `loa
d_dependency'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:228:in `req
uire'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:329:in `req
uire_or_load'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:462:in `loa
d_missing_constant'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:183:in `con …