我无法使用 Watir 识别富文本框。所以我试着用browser.send_keys(“{tab}”)tab键。但这会产生错误。我尝试卸载ffi-1.0.10-x86-mingw32.gem和安装 ffi –v 1.0.9 但这不起作用。我收到这样的错误：
irb(main):013:0> browser.send_keys("{tab}")
LoadError: cannot load such file -- ffi_c
from C:/Ruby193/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from C:/Ruby193/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/ffi-1.0.10-x86-mingw32/lib/ffi.rb:11:in `rescue in <top (required)>'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/ffi-1.0.10-x86-mingw32/lib/ffi.rb:2:in `<top (required)>'
from C:/Ruby193/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from C:/Ruby193/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rautomation-0.7.2/lib/rautomation/adapter/win_32.rb:6:in `<top (required)>'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rautomation-0.7.2/lib/rautomation/window.rb:67:in `const_get'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rautomation-0.7.2/lib/rautomation/window.rb:67:in `initialize'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/watir-classic-3.0.0/lib/watir-classic/ie-class.rb:456:in `new'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/watir-classic-3.0.0/lib/watir-classic/ie-class.rb:456:in `rautomation'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/watir-classic-3.0.0/lib/watir-classic/ie-class.rb:475:in `send_keys'
from (irb):13
from C:/Ruby193/bin/irb:12:in `<main>'
irb(main):014:0>
我使用 Watir 3.0.0、Ruby 1.9.3。
宝石：
- 大十进制 (1.1.0)
- 建设者（3.0.0）
- 普通人 (3.0.0)
- ffi (1.0.10 x86-mingw32)
- 锄头 (3.0.6)
- io 控制台 (0.3)
- json (1.5.4)
- 迷你测试（2.5.1）
- nokogiri (1.5.3 x86-mingw32)
- 耙子 (0.9.2.2)
- r自动化（0.7.2）
- rdoc (3.9.4)
- rubygems 更新 (1.8.24)
- s4t-utils (1.0.4)
- 用户选择 (1.1.6.1)
- 瓦提尔 (3.0.0, 1.5.3)
- 水经典（3.0.0）
- win32-api (1.4.8)
- win32 进程 (0.6.5)
- windows-api (0.4.1)
- windows-pr (1.2.1)
- xml-简单 (1.1.1)