红宝石请速错误

我试图安装this dashing widget，我得到以下错误，当我运行dashing start红宝石请速错误

/var/lib/gems/1.9.1/gems/dashing-1.3.1/lib/dashing.rb:26:in `block (2 levels) in <top (required)>': undefined method `history' for Sinatra::Application:Class (NoMethodError)

于是我去掉这个新的小工具（它在/部件目录文件夹，其工作的各个方面。 rb文件和.erb文件中的代码）。然而，这个错误仍然存在，我不再能够启动我的仪表板。这对我来说是个大问题。有人可以帮我吗？

编辑：

完整的错误是

/var/lib/gems/1.9.1/gems/dashing-1.3.1/lib/dashing.rb:26:in `block (2 levels) in <top (required)>': undefined method `history' for Sinatra::Application:Class (NoMethodError) 
     from /var/lib/gems/1.9.1/gems/dashing-1.3.1/lib/dashing.rb:25:in `open' 
     from /var/lib/gems/1.9.1/gems/dashing-1.3.1/lib/dashing.rb:25:in `block in <top (required)>' 
/usr/lib/ruby/1.9.1/psych.rb:203:in `parse': (history.yml): control characters are not allowed at line 1 column 1 (Psych::SyntaxError) 
     from /usr/lib/ruby/1.9.1/psych.rb:203:in `parse_stream' 
     from /usr/lib/ruby/1.9.1/psych.rb:151:in `parse' 
     from /usr/lib/ruby/1.9.1/psych.rb:127:in `load' 
     from /usr/lib/ruby/1.9.1/psych.rb:297:in `block in load_file' 
     from /usr/lib/ruby/1.9.1/psych.rb:297:in `open' 
     from /usr/lib/ruby/1.9.1/psych.rb:297:in `load_file' 
     from /var/lib/gems/1.9.1/gems/dashing-1.3.1/lib/dashing.rb:31:in `<top (required)>' 
     from config.ru:2:in `require' 
     from config.ru:2:in `block in <main>' 
     from /var/lib/gems/1.9.1/gems/rack-1.5.2/lib/rack/builder.rb:55:in `instance_eval' 
     from /var/lib/gems/1.9.1/gems/rack-1.5.2/lib/rack/builder.rb:55:in `initialize' 
     from config.ru:1:in `new' 
     from config.ru:1:in `<main>' 
     from /var/lib/gems/1.9.1/gems/thin-1.6.1/lib/rack/adapter/loader.rb:33:in `eval' 
     from /var/lib/gems/1.9.1/gems/thin-1.6.1/lib/rack/adapter/loader.rb:33:in `load' 
     from /var/lib/gems/1.9.1/gems/thin-1.6.1/lib/thin/controllers/controller.rb:182:in `load_rackup_config' 
     from /var/lib/gems/1.9.1/gems/thin-1.6.1/lib/thin/controllers/controller.rb:72:in `start' 
     from /var/lib/gems/1.9.1/gems/thin-1.6.1/lib/thin/runner.rb:200:in `run_command' 
     from /var/lib/gems/1.9.1/gems/thin-1.6.1/lib/thin/runner.rb:156:in `run!' 
     from /var/lib/gems/1.9.1/gems/thin-1.6.1/bin/thin:6:in `<top (required)>' 
     from /usr/local/bin/thin:23:in `load' 
     from /usr/local/bin/thin:23:in `<main>'

来源

2013-11-25 user1893354

检查堆栈跟踪，而不仅仅是这一行，看看它被调用的地方。 – tadman

我已经包含完整的错误信息 – user1893354

它看起来像我的psych.rb文件有一个问题 – user1893354

我通过重命名旧的历史文件

mv history.yml history

，然后重新启动服务器解决了这个问题。在我的情况下，这是

rackup -p 3030 -s puma

history.yml文件直到我停止服务器后才重新出现。我用纳米检查过，里面充满了数据。对不起，我不能说明为什么它可能发生。服务器的详细信息。 Ubuntu 13.10 32位桌面

来源

2013-12-20 14:56:58

今天我发现history.yml出现问题的一个可能原因是在Dashing正在运行时关闭一个SSH连接（Windows bluescreened on me，所以这不是我的错！）。为了避免启动守护程序开关 'rackup -p 3030 -s puma -D' ，因为这会在美洲狮开始启动后返回提示。当您测试作业时不太有用，但它确实解释了问题 –

红宝石请速错误

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