这里为打开chrome浏览器时报错，完整错误信息为：
command: pybot.bat --argumentfile c:userszpappdatalocal empRIDE5xr031.dargfile.txt --listener D:Softwarepython2_7_11libsite-packages obotidecontrib estrunnerTestRunnerAgent.py:54038:False D:Softwarepython2_7_11appcasewebtest.robot
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Webtest
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openBaidu
| FAIL |
WebDriverException: Message: 'chromedriver' executable needs to be in PATH. Please see https://sites.google.com/a/chromium.org/chromedriver/home
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Webtest | FAIL |
1 critical test, 0 passed, 1 failed
1 test total, 0 passed, 1 failed
=====================================================================================================================================
Output: c:userszpappdatalocal empRIDE5xr031.doutput.xml
[ WARN ] Keyword 'Capture Page Screenshot' could not be run on failure: No browser is open
Log: c:userszpappdatalocal empRIDE5xr031.dlog.html
Report: c:userszpappdatalocal empRIDE5xr031.d eport.html
unexpected error: Exception AttributeError: "'Service' object has no attribute 'process'" in > ignored
test finished 20160627 11:17:14
解决办法：
根据上面的提示，实际已经给出了解决办法：
WebDriverException: Message: 'chromedriver' executable needs to be in PATH. Please see https://sites.google.com/a/chromium.org/chromedriver/home
实际这里已经给出了解决办法，但是这个地址是下载不了chrome驱动的，这里给出一个可用地址：
http://www.xdowns.com/soft/38/63/2015/Soft_136971.html
下载chrome驱动，然后放置于python根目录下，就可以了。当然，我的python根目录已经写入了PATH变量中。不管chrome的驱动放在哪里，它的路径需要写入系统PATH变量。
对应的，如果打开IE、360等浏览器出现这样的问题，再百度上找到对应的浏览器驱动，然后下载保存到python目录下就可以了。