pdf-writer 无效多字节字符 (US-ASCII)，期望 keywords_end 内容 =“%PDF-#{@version}\n%âãÏÓ\n”轨道3

Question

我在尝试运行的协作项目中遇到了 pdf-writer gem 的问题，我正在使用 RVM、Ruby 1.9.2p180、Rails Ubuntu 10.10 上的 3.1.0。

我创建了一个新的 gemset 来使用 Bundler 安装所需的 gem，但是当我尝试运行该应用程序时，出现以下错误；

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>'

问题出在 pdf-writer-1.1.8/lib/pdf/writer.rb:712 中，具体来说； content = "%PDF-#{@version}\n%âãÏÓ\n"

任何建议都很好，我尝试用 Google 搜索错误，但我没有找到任何特定于 pdf-writer 的内容。 ..

Answer 1

pdf-writer 与 Ruby 1.9 不兼容。有一个分叉： 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'

Answer 2

我刚刚将 pdf-writer 移植到 Ruby 2.0。发送到元技能的拉取请求（在之前的答案中引用）。

如果您同时需要 Ruby 2.0，请在此处找到分叉代码：

gem 'pdf-writer', :git => 'git://github.com/mwlang/pdf-writer.git'

Answer 3

pdf-writer 的 fork 也可以在 Ruby 2.1 上运行，谢谢。

gem 'pdf-writer', :git => 'git://github.com/mwlang/pdf-writer.git'