使用Railroad for Rails時出現兩個錯誤

我在本地機器上安裝了散落軌道應用程序https://github.com/diaspora/diaspora。然後，我安裝了Railroads圖生成器http://railroad.rubyforge.org/#download 使用Railroad for Rails時出現兩個錯誤

按照網站上的說明，我構建了一個rake任務來運行它，但運行它時似乎收到兩個單獨的錯誤。

第一個錯誤是不存在的點命令：

sh: dot: command not found

第二個錯誤，而不耙運行時，我也得到：

Seans-MacBook-Pro:diaspora sean$ railroad -o models.dot -M 
/Users/sean/.rvm/gems/[email protected]/gems/railroad- 0.5.0/lib/railroad/app_diagram.rb:54:in `disable_stdout': uninitialized constant  AppDiagram::PLATFORM (NameError)

當我運行rake：

Seans-MacBook-Pro:diaspora sean$ rake doc:diagrams 
WARNING: Nokogiri was built against LibXML version 2.7.3, but has dynamically loaded 2.7.8 
railroad -i -l -a -m -M | dot -Tsvg | sed 's/font-size:14.00/font-size:11.00/g' > doc/models.svg 
sh: dot: command not found 
/Users/sean/.rvm/gems/[email protected]/gems/railroad- 0.5.0/lib/railroad/app_diagram.rb:54:in `disable_stdout': uninitialized constant AppDiagram::PLATFORM (NameError) 
from /Users/sean/.rvm/gems/[email protected]/gems/railroad- 0.5.0/lib/railroad/app_diagram.rb:72:in `load_environment' 
from /Users/sean/.rvm/gems/[email protected]/gems/railroad-0.5.0/lib/railroad/app_diagram.rb:18:in `initialize' 
from /Users/sean/.rvm/gems/[email protected]/gems/railroad-0.5.0/lib/railroad/models_diagram.rb:14:in `initialize' 
from /Users/sean/.rvm/gems/[email protected]/gems/railroad-0.5.0/bin/railroad:36:in `new' 
from /Users/sean/.rvm/gems/[email protected]/gems/railroad-0.5.0/bin/railroad:36:in `<top (required)>'

我還修改鐵路/ app_diagram.rb按此鏈接http://rubyforge.org/tracker/index.php?func=detail&aid=26418&group_id=3383&atid=12998

現在我收到此錯誤：

Seans-MacBook-Pro:diaspora sean$ rake doc:diagrams 
WARNING: Nokogiri was built against LibXML version 2.7.3, but has dynamically loaded 2.7.8 
railroad -i -l -a -m -M | dot -Tsvg | sed 's/font-size:14.00/font-size:11.00/g' > doc/models.svg 
dyld: Library not loaded: /usr/lib/libltdl.7.dylib 
    Referenced from: /usr/local/bin/dot 
    Reason: image not found 
    Error loading application environment. 
(Are you running railroad on the aplication's root directory?) 

/Users/sean/.rvm/gems/[email protected]/gems/railroad-0.5.0/lib/railroad/app_diagram.rb:73:in `require': cannot load such file -- config/environment (LoadError) 
from /Users/sean/.rvm/gems/[email protected]/gems/railroad- 0.5.0/lib/railroad/app_diagram.rb:73:in `load_environment' 
from /Users/sean/.rvm/gems/[email protected]

我從項目的根上運行，並且該文件存在。我也嘗試將.rb添加到app_diagram.rb文件中的行，但沒有更改。

Seans-MacBook-Pro:diaspora sean$ pwd 
/Users/sean/Dropbox/rails/diaspora 

Seans-MacBook-Pro:diaspora sean$ head -73 /Users/sean/.rvm/gems/ruby-1.9.3- [email protected]/gems/railroad-0.5.0/lib/railroad/app_diagram.rb 
| tail -1 
     require "config/environment" 

Seans-MacBook-Pro:diaspora sean$ ls -l config/environment.rb 
-rw-r--r-- 1 sean staff 1481 Jul 19 14:25 config/environment.rb

來源

2012-10-27 ardochhigh