我正在用 ruby 编写这个机器人并遇到了麻烦，这比我想象的要复杂得多。我阅读了许多类似的文章，但没有任何帮助。
它可能与 watir 无关，但具体来说，我说它是。另外，我在 Fedora 上。这是我尝试过的：
table = browser.table(:index , 7)
puts table[1][1].text
html 表格片段类似于：
<table>
<tr>
something...
</tr>
<tr>
<td/>
<td>
Likiškėlių
</td>
</tr>
</table>
我明白了
/usr/local/share/gems/gems/multi_json-1.7.2/lib/multi_json/vendor/okjson.rb:364:in `[]=': incompatible character encodings: UTF-8 and ASCII-8BIT (Encoding::CompatibilityError)
from /usr/local/share/gems/gems/multi_json-1.7.2/lib/multi_json/vendor/okjson.rb:364:in `unquote'
from /usr/local/share/gems/gems/multi_json-1.7.2/lib/multi_json/vendor/okjson.rb:288:in `strtok'
from /usr/local/share/gems/gems/multi_json-1.7.2/lib/multi_json/vendor/okjson.rb:254:in `tok'
from /usr/local/share/gems/gems/multi_json-1.7.2/lib/multi_json/vendor/okjson.rb:217:in `lex'
from /usr/local/share/gems/gems/multi_json-1.7.2/lib/multi_json/vendor/okjson.rb:45:in `decode'
from /usr/local/share/gems/gems/multi_json-1.7.2/lib/multi_json/adapters/ok_json.rb:13:in `load'
from /usr/local/share/gems/gems/multi_json-1.7.2/lib/multi_json/adapter.rb:19:in `load'
from /usr/local/share/gems/gems/multi_json-1.7.2/lib/multi_json.rb:120:in `load'
from /usr/local/share/gems/gems/selenium-webdriver-2.32.1/lib/selenium/webdriver/common/json_helper.rb:11:in `json_load'
from /usr/local/share/gems/gems/selenium-webdriver-2.32.1/lib/selenium/webdriver/remote/http/common.rb:59:in `create_response'
from /usr/local/share/gems/gems/selenium-webdriver-2.32.1/lib/selenium/webdriver/remote/http/default.rb:66:in `request'
from /usr/local/share/gems/gems/selenium-webdriver-2.32.1/lib/selenium/webdriver/remote/http/common.rb:40:in `call'
from /usr/local/share/gems/gems/selenium-webdriver-2.32.1/lib/selenium/webdriver/remote/bridge.rb:619:in `raw_execute'
from /usr/local/share/gems/gems/selenium-webdriver-2.32.1/lib/selenium/webdriver/remote/bridge.rb:597:in `execute'
from /usr/local/share/gems/gems/selenium-webdriver-2.32.1/lib/selenium/webdriver/remote/bridge.rb:508:in `getElementText'
from /usr/local/share/gems/gems/selenium-webdriver-2.32.1/lib/selenium/webdriver/common/element.rb:108:in `text'
from /usr/local/share/gems/gems/watir-webdriver-0.6.4/lib/watir-webdriver/elements/element.rb:86:in `text'
from watir.rb:25:in `<main>'
我也试过：
.gsub!(/\P{ASCII}/, '')
.delete!("^\u{0000}-\u{007F}")
变化，但没有成功。请帮忙！为什么编码这么复杂？我一无所知。
编辑：实际上，如果有帮助，我不需要打印字符串，只需将其写入文件，但错误是相同的。
我的 ruby 版本是：ruby 1.9.3p392（2013-02-22 修订版 39386）[i386-linux]
编辑：我也试过：
# encoding: ASCII-8BIT
or
# encoding: utf-8
with
puts table[1][1].text.length
但仍然是同样的错误
编辑因为它甚至不会显示 .bytesize ，我敢打赌它是 watir。有什么建议么？