我正在尝试运行的协作项目上的pdf-writer gem存在问题，我在{{1}上使用RVM，Ruby 1.9.2p180，Rails 3.1.0 }。
我创建了一个新的Ubuntu 10.10来安装Bundler所需的宝石，但是当我尝试运行应用程序时，我得到了一个错误的错误;
gemset问题出在josethernandezc@DG965WH:~/Desktop/conest31$ rails s
/home/josethernandezc/.rvm/gems/ruby-1.9.2-p180@conest31/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:240:in `require': /home/josethernandezc/.rvm/gems/ruby-1.9.2-p180@conest31/gems/pdf-writer-1.1.8/lib/pdf/writer.rb:712: invalid multibyte char (US-ASCII) (SyntaxError)
/home/josethernandezc/.rvm/gems/ruby-1.9.2-p180@conest31/gems/pdf-writer-1.1.8/lib/pdf/writer.rb:712: invalid multibyte char (US-ASCII)
/home/josethernandezc/.rvm/gems/ruby-1.9.2-p180@conest31/gems/pdf-writer-1.1.8/lib/pdf/writer.rb:712: syntax error, unexpected $end, expecting keyword_end
content = "%PDF-#{@version}\n%âãÏÓ\n"
^
from /home/josethernandezc/.rvm/gems/ruby-1.9.2-p180@conest31/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:240:in `block in require'
from /home/josethernandezc/.rvm/gems/ruby-1.9.2-p180@conest31/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:223:in `block in load_dependency'
from /home/josethernandezc/.rvm/gems/ruby-1.9.2-p180@conest31/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:640:in `new_constants_in'
from /home/josethernandezc/.rvm/gems/ruby-1.9.2-p180@conest31/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:223:in `load_dependency'
from /home/josethernandezc/.rvm/gems/ruby-1.9.2-p180@conest31/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:240:in `require'
from /home/josethernandezc/Desktop/conest31/config/application.rb:58:in `<top (required)>'
from /home/josethernandezc/.rvm/gems/ruby-1.9.2-p180@conest31/gems/railties-3.1.0/lib/rails/commands.rb:52:in `require'
from /home/josethernandezc/.rvm/gems/ruby-1.9.2-p180@conest31/gems/railties-3.1.0/lib/rails/commands.rb:52:in `block in <top (required)>'
from /home/josethernandezc/.rvm/gems/ruby-1.9.2-p180@conest31/gems/railties-3.1.0/lib/rails/commands.rb:49:in `tap'
from /home/josethernandezc/.rvm/gems/ruby-1.9.2-p180@conest31/gems/railties-3.1.0/lib/rails/commands.rb:49:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'
，特别是; pdf-writer-1.1.8/lib/pdf/writer.rb:712
任何建议都会很棒，我试图谷歌错误但我没有找到任何特定于pdf-writer ....
答案 0 :(得分：3)
pdf-writer与Ruby 1.9不兼容。有一个叉子：https://github.com/metaskills/pdf-writer
更改Gemfile中的pdf-writer行：
gem 'pdf-writer', :git => 'git://github.com/metaskills/pdf-writer.git'
答案 1 :(得分：1)
我刚将pdf-writer移植到Ruby 2.0。将请求发送到metaskills（在前面的答案中引用）。
如果您在此期间需要Ruby 2.0，请在此处找到分叉代码：
gem 'pdf-writer', :git => 'git://github.com/mwlang/pdf-writer.git'
答案 2 :(得分：1)
pdf-writer的分支也适用于Ruby 2.1，谢谢。
gem 'pdf-writer', :git => 'git://github.com/mwlang/pdf-writer.git'