小编San*_*osh的帖子

我遇到了这行ruby代码.这&.意味着什么？

@object&.method

每当我转到带有文件的.rvmrc文件夹时,都会发出警告:

Warning! PATH is not properly set up, '/home/me/.rvm/gems/ruby-2.0.0-p247/bin' is not available,
         usually this is caused by shell initialization files - check them for 'PATH=...' entries,
         to fix run: 'rvm use ruby-2.0.0-p247'.

我做了rvm use ruby-2.0.0-p247,但警告仍然存在.

注意:没有错误,我能够正常运行我的应用程序,但警告非常烦人.有任何想法吗？

如何获得可用列表generators中Rails的应用程序,其中包括来自包括宝石样devise？(类似于rake -T列表rake tasks)

一直在网上寻找更多的信息,但找不到多少.

所以我创建了一个新的MVC 5项目,VS 2013 RC其中预装了bootstrap 2.3.1

一切就像一个魅力,但因为Bootstrap 3是(而且我想要使用的LESS版本,而不是pre-compiled CSS)我删除bootstrap 2.3.1从NuGet和安装Bootstrap LESS.

我知道文件夹结构略有不同,但我已经编辑了我BundleConfig以适应这一点.一切似乎编译得很好,所有的JS都在那里,但是当试图查看网页时,它看起来很乱.

是否Bootstrap 3有完全不同的HTML模板(即我需要更改_Layout？)还是应该_Layout与之2.3.1一起使用v3？

我希望我的问题很明确.

Ubuntu它被绞死后我不得不强行关闭我的系统.现在我在尝试运行我的Rails应用程序时遇到此错误.

Moped::Errors::ConnectionFailure (Could not connect to any secondary or primary nodes for replica set <Moped::Cluster nodes=[<Moped::Node resolved_address="127.0.0.1:27017">]>):

即时通讯使用Rails 3.2.11有Mongoid 3.1.4.

可能有什么不对？

我遵循本教程:https: //guides.spreecommerce.com/developer/getting_started_tutorial.html#installing-image-magick 当我写

jonstark@jonstark-pc:~/rails_projects/optima1$ spree install --auto-accept

我懂了:

/home/jonstark/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/rubygems/specification.rb:2158:in
`method_missing': undefined method `this' for
#<Gem::Specification:0x4db6d12 activesupport-4.2.0> (NoMethodError)     from
/home/jonstark/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/rubygems/specification.rb:1057:in
`find_active_stub_by_path'  from
/home/jonstark/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:64:in
`require'   from
/home/jonstark/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.0/lib/active_support/core_ext/string.rb:1:in
`<top (required)>'  from
/home/jonstark/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:127:in
`require'   from
/home/jonstark/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:127:in
`rescue in require'     from
/home/jonstark/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:40:in
`require'   from
/home/jonstark/.rvm/gems/ruby-2.3.0/gems/spree_cmd-3.0.6.1/lib/spree_cmd/installer.rb:2:in
`<top (required)>'  from
/home/jonstark/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in
`require'   from
/home/jonstark/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in
`require'   from
/home/jonstark/.rvm/gems/ruby-2.3.0/gems/spree_cmd-3.0.6.1/lib/spree_cmd.rb:13:in
`<top (required)>'  from
/home/jonstark/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in
`require'   from
/home/jonstark/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in
`require'   from
/home/jonstark/.rvm/gems/ruby-2.3.0/gems/spree_cmd-3.0.6.1/bin/spree:2:in
`<top (required)>'  from
/home/jonstark/.rvm/gems/ruby-2.3.0/bin/spree:23:in `load'  from
/home/jonstark/.rvm/gems/ruby-2.3.0/bin/spree:23:in `<main>'    from
/home/jonstark/.rvm/gems/ruby-2.3.0/bin/ruby_executable_hooks:15:in
`eval'  from
/home/jonstark/.rvm/gems/ruby-2.3.0/bin/ruby_executable_hooks:15:in
`<main>'

我的宝石文件

source 'https://rubygems.org'
ruby …

我的要求是获取iphone相机,将其编码为H264格式并将其发送到服务器.在搜索中,我发现编码部分可以使用ffmpeg lib和x264(libx264).但现在接下来的任务是使用rtsp将编码数据发送到Wowza服务器.

如果有人知道这一点,请分享一些代码或有用的文档.

还有另一个用于编码目的的live555库.但我不确定它是否可以使用rtsp将数据发送到服务器.

在创建最终图像之前,链接器在解析目标文件中的重定位时会采取哪些步骤？更具体地说,链接器如何处理已经存储在重定位站点的值？它总是将它添加到最终的VA/RVA中,还是有时会被忽略(例如某些重定位类型)？

我在MS PE/COFF Specfication中找不到清晰的解释,经过谷歌搜索和实验一段时间后,我所能发现的是:

1. 在MS COFF规范的第5.6.2节"基本重定位类型"中,据说"基址重定位将所有32位差异应用于偏移量的32位字段",我猜这意味着重定位应该采取考虑已经存储在指定偏移处的任何地址.但是,第5.6章(.reloc部分)仅与图像文件有关,而与目标文件无关.
2. dumpbin实用程序在打印重定位表时添加名为"应用于"的列,该列似乎始终(无论重定位类型)是否包含存储在重定位站点的值.
3. DJGPP COFF规范中的重定位指令章节明确指出,当前存储在该位置的值应该添加到重定位表条目指向的符号的地址中.

您能否指出我的任何(相关)文档,它解释了链接器如何处理重定位？

我试图yum update在我的机器上运行,我得到这个错误.

Error: Cannot retrieve repository metadata (repomd.xml) for repository: boxgrinder-noarch. Please verify its path and try again

知道什么是错的吗？

我用 Fedora 15

我使用capistranoon AWS,with nginx和部署了我的应用程序unicorn.当我打开我的主页时,它是空的.这是我的unicorn日志

Started GET "/" for 111.111.111.111 at 2014-03-10 12:50:02 +0000
Processing by StaticController#index as HTML
Completed 500 Internal Server Error in 236ms

ActionView::MissingTemplate (Missing template static/index with {:locale=>[:en], :formats=>[:html], :handlers=>[:erb, :builder, :coffee, :haml]}. Searched in:
  * "/home/deployer/apps/my-app/releases/20140310084512/app/views"
  * "/home/deployer/apps/my-app/shared/bundle/ruby/1.9.1/gems/twitter-bootstrap-rails-2.2.8/app/views"
  * "/home/deployer/apps/my-app/shared/bundle/ruby/1.9.1/gems/glimpse-redis-1.1.0/app/views"
  * "/home/deployer/apps/my-app/shared/bundle/ruby/1.9.1/gems/glimpse-git-1.0.1/app/views"
  * "/home/deployer/apps/my-app/shared/bundle/ruby/1.9.1/gems/glimpse-0.0.5/app/views"
  * "/home/deployer/apps/my-app/shared/bundle/ruby/1.9.1/gems/kaminari-0.15.1/app/views"
  * "/home/deployer/apps/my-app/shared/bundle/ruby/1.9.1/gems/devise-3.2.3/app/views"
  * "/home/deployer/apps/my-app/releases/20140310124541"
  * "/"
):
  app/controllers/static_controller.rb:8:in `index'

我的最新版本是20140310124541,但缺少的模板错误来自之前的版本20140310084512.可能是什么问题.该current文件夹的符号链接也正确创建.