Rake任务不适用于postgresql和sinatra-activerecord

Question

我试图在Kubuntu 12.04中使用ruby和sinatra在本地设置facebook应用程序。我已经在我的gem文件中包含了以下的宝石。我已经在我的系统中安装了postgresql，并且我能够运行postgresql命令行和运行诸如createdb、create table等基本命令。

gem "sinatra"
gem "koala"
gem "json", "1.5.5"
gem "httparty"
gem "thin"
gem "rack", "1.3.10"
gem "pg"
gem "activerecord"
gem "sinatra-activerecord"

在我的app.rb文件中添加了这些文件，

require "rubygems"
require "sinatra"
require "sinatra/activerecord"
require "koala"
require "./config/environment" #database configuration

正在运行

rake -T

在我的终端中显示以下错误。

rake aborted!
(<unknown>): found character that cannot start any token while scanning for the next token at line 2 column 1
/var/lib/gems/1.9.1/gems/sinatra-activerecord-1.2.2/lib/sinatra/activerecord.rb:39:in `database_file='
/var/lib/gems/1.9.1/gems/sinatra-1.3.3/lib/sinatra/base.rb:1033:in `set'
/var/lib/gems/1.9.1/gems/sinatra-activerecord-1.2.2/lib/sinatra/activerecord.rb:50:in `registered'
/var/lib/gems/1.9.1/gems/sinatra-1.3.3/lib/sinatra/base.rb:1317:in `block in register'
/var/lib/gems/1.9.1/gems/sinatra-1.3.3/lib/sinatra/base.rb:1315:in `each'
/var/lib/gems/1.9.1/gems/sinatra-1.3.3/lib/sinatra/base.rb:1315:in `register'
/var/lib/gems/1.9.1/gems/sinatra-1.3.3/lib/sinatra/base.rb:1648:in `register'
/var/lib/gems/1.9.1/gems/sinatra-1.3.3/lib/sinatra/base.rb:1688:in `register'
/var/lib/gems/1.9.1/gems/sinatra-activerecord-1.2.2/lib/sinatra/activerecord.rb:76:in `<module:Sinatra>'
/var/lib/gems/1.9.1/gems/sinatra-activerecord-1.2.2/lib/sinatra/activerecord.rb:6:in `<top (required)>'
/home/nitin/facebook_app/guarded-gorge-3234/app.rb:3:in `<top (required)>'
/home/nitin/facebook_app/guarded-gorge-3234/Rakefile:1:in `<top (required)>'
/var/lib/gems/1.9.1/gems/rake-10.0.4/lib/rake/rake_module.rb:25:in `load'
/var/lib/gems/1.9.1/gems/rake-10.0.4/lib/rake/rake_module.rb:25:in `load_rakefile'
/var/lib/gems/1.9.1/gems/rake-10.0.4/lib/rake/application.rb:589:in `raw_load_rakefile'
/var/lib/gems/1.9.1/gems/rake-10.0.4/lib/rake/application.rb:89:in `block in load_rakefile'
/var/lib/gems/1.9.1/gems/rake-10.0.4/lib/rake/application.rb:160:in `standard_exception_handling'
/var/lib/gems/1.9.1/gems/rake-10.0.4/lib/rake/application.rb:88:in `load_rakefile'
/var/lib/gems/1.9.1/gems/rake-10.0.4/lib/rake/application.rb:72:in `block in run'
/var/lib/gems/1.9.1/gems/rake-10.0.4/lib/rake/application.rb:160:in `standard_exception_handling'
/var/lib/gems/1.9.1/gems/rake-10.0.4/lib/rake/application.rb:70:in `run'

有谁能帮帮忙。谢谢。

Answer 1

正如@iain提到的，这是由于config/database.yml文件中的解析错误造成的。检查它是否为有效语法，并将所有制表符替换为空格。