Rails 耙子 db:create 不起作用
Rails rake db:create does not work
我有计算机科学和编程背景，熟悉 *nix CLI。
我是 rails 上 ruby 的新手，我正在参加在线训练营。我的一课是创建一个新的 rails 应用程序。它从以下命令开始创建一个新的 rails 应用程序并创建数据库：
$ rails new bloccit -T
$ cd bloccit
$ rake db:create
当我运行 rake 命令时，进程挂起。我让它 运行 放了 30 分钟，它就停在那里。当我执行硬中断时，我得到以下堆栈跟踪：
^C/Users/mikekeathley/.rvm/gems/ruby-2.2.1/gems/spring-1.3.4/lib/spring/client/run.rb:99:in `gets': Interrupt
from /Users/mikekeathley/.rvm/gems/ruby-2.2.1/gems/spring-1.3.4/lib/spring/client/run.rb:99:in `verify_server_version'
from /Users/mikekeathley/.rvm/gems/ruby-2.2.1/gems/spring-1.3.4/lib/spring/client/run.rb:56:in `run'
from /Users/mikekeathley/.rvm/gems/ruby-2.2.1/gems/spring-1.3.4/lib/spring/client/run.rb:37:in `warm_run'
from /Users/mikekeathley/.rvm/gems/ruby-2.2.1/gems/spring-1.3.4/lib/spring/client/run.rb:26:in `call'
from /Users/mikekeathley/.rvm/gems/ruby-2.2.1/gems/spring-1.3.4/lib/spring/client/command.rb:7:in `call'
from /Users/mikekeathley/.rvm/gems/ruby-2.2.1/gems/spring-1.3.4/lib/spring/client.rb:26:in `run'
from /Users/mikekeathley/.rvm/gems/ruby-2.2.1/gems/spring-1.3.4/bin/spring:48:in `<top (required)>'
from /Users/mikekeathley/.rvm/gems/ruby-2.2.1/gems/spring-1.3.4/lib/spring/binstub.rb:11:in `load'
from /Users/mikekeathley/.rvm/gems/ruby-2.2.1/gems/spring-1.3.4/lib/spring/binstub.rb:11:in `<top (required)>'
from /Users/mikekeathley/.rvm/rubies/ruby-2.2.1/lib/ruby/site_ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
from /Users/mikekeathley/.rvm/rubies/ruby-2.2.1/lib/ruby/site_ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
from /Users/mikekeathley/code/bloccit/bin/spring:13:in `<top (required)>'
from bin/rake:3:in `load'
from bin/rake:3:in `<main>'
我了解堆栈跟踪：在 run.rb 文件的第 99 行，gets 方法卡住了。我只是对 spring.
一无所知
我是 运行宁 Ruby 2.2.1p85，Rails 4.2.1，和 sqlite3 1.3.10。
使用命令
停止spring
bin/spring stop
然后 运行 再次执行 rake 命令。它会解决这个问题。
我有计算机科学和编程背景，熟悉 *nix CLI。
我是 rails 上 ruby 的新手，我正在参加在线训练营。我的一课是创建一个新的 rails 应用程序。它从以下命令开始创建一个新的 rails 应用程序并创建数据库：
$ rails new bloccit -T
$ cd bloccit
$ rake db:create
当我运行 rake 命令时，进程挂起。我让它 运行 放了 30 分钟，它就停在那里。当我执行硬中断时，我得到以下堆栈跟踪：
^C/Users/mikekeathley/.rvm/gems/ruby-2.2.1/gems/spring-1.3.4/lib/spring/client/run.rb:99:in `gets': Interrupt
from /Users/mikekeathley/.rvm/gems/ruby-2.2.1/gems/spring-1.3.4/lib/spring/client/run.rb:99:in `verify_server_version'
from /Users/mikekeathley/.rvm/gems/ruby-2.2.1/gems/spring-1.3.4/lib/spring/client/run.rb:56:in `run'
from /Users/mikekeathley/.rvm/gems/ruby-2.2.1/gems/spring-1.3.4/lib/spring/client/run.rb:37:in `warm_run'
from /Users/mikekeathley/.rvm/gems/ruby-2.2.1/gems/spring-1.3.4/lib/spring/client/run.rb:26:in `call'
from /Users/mikekeathley/.rvm/gems/ruby-2.2.1/gems/spring-1.3.4/lib/spring/client/command.rb:7:in `call'
from /Users/mikekeathley/.rvm/gems/ruby-2.2.1/gems/spring-1.3.4/lib/spring/client.rb:26:in `run'
from /Users/mikekeathley/.rvm/gems/ruby-2.2.1/gems/spring-1.3.4/bin/spring:48:in `<top (required)>'
from /Users/mikekeathley/.rvm/gems/ruby-2.2.1/gems/spring-1.3.4/lib/spring/binstub.rb:11:in `load'
from /Users/mikekeathley/.rvm/gems/ruby-2.2.1/gems/spring-1.3.4/lib/spring/binstub.rb:11:in `<top (required)>'
from /Users/mikekeathley/.rvm/rubies/ruby-2.2.1/lib/ruby/site_ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
from /Users/mikekeathley/.rvm/rubies/ruby-2.2.1/lib/ruby/site_ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
from /Users/mikekeathley/code/bloccit/bin/spring:13:in `<top (required)>'
from bin/rake:3:in `load'
from bin/rake:3:in `<main>'
我了解堆栈跟踪：在 run.rb 文件的第 99 行，gets 方法卡住了。我只是对 spring.
一无所知我是 运行宁 Ruby 2.2.1p85，Rails 4.2.1，和 sqlite3 1.3.10。
使用命令
停止springbin/spring stop
然后 运行 再次执行 rake 命令。它会解决这个问题。