第一个报错问题

'geckodriver' executable needs to be in PATH

1.1如果启动浏览器过程中报如下错误：

Traceback (most recent call last):File "", line 1, in <module>File "D:\test\python3\lib\site-packages\selenium\webdriver\firefox\webdriver.py", line 145, in __init__self.service.start()File "D:\test\python3\lib\site-packages\selenium\webdriver\common\service.py", line 81, in startos.path.basename(self.path), self.start_error_message)selenium.common.exceptions.WebDriverException: Message: 'geckodriver' executable needs to be in PATH.

1.2这个是因为最新的selenium3.0启动firefox需要geckodriver.exe这个驱动文件。

1.3下载之后，配置到环境变量path下(可以直接放python根目录)

第二个报错问题

Expected browser binary location, but unable to find binary in default location

1.1如果启动浏览器过程中报如下错误：

Traceback (most recent call last):File "", line 1, in <module>File "D:\test\python3\lib\site-packages\selenium\webdriver\firefox\webdriver.py", line 155, in __init__keep_alive=True)File "D:\test\python3\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 92, in __init__self.start_session(desired_capabilities, browser_profile)

File "D:\test\python3\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 179, in start_sessionresponse = self.execute(Command.NEW_SESSION, capabilities)File "D:\test\python3\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 238, in executeself.error_handler.check_response(response)File "D:\test\python3\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 193, in check_responseraise exception_class(message, screen, stacktrace)selenium.common.exceptions.WebDriverException: Message: Expected browser binary location, but unable to find binary in default location,no 'moz:firefoxOptions.binary' capability provided, and no binary flag set on the command line.

1.2这个是因为firefox.exe这个文件也需要配置到环境变量path下

1.3这个路径就是安装完firefox后，找到firefox.exe这个文件的地址，加到path下

第三个报错问题

Unsupported Marionette protocol version 2, required 3

1.1如果启动浏览器过程中出现如下错误：

Traceback (most recent call last):File "", line 1, in <module>

File "D:\test\python3\lib\site-packages\selenium\webdriver\firefox\webdriver.py", line 155, in __init__keep_alive=True)File "D:\test\python3\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 92, in __init__self.start_session(desired_capabilities, browser_profile)File "D:\test\python3\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 179, in start_sessionresponse = self.execute(Command.NEW_SESSION, capabilities)File "D:\test\python3\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 238, in executeself.error_handler.check_response(response)File "D:\test\python3\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 193, in check_response

raise exception_class(message, screen, stacktrace)selenium.common.exceptions.WebDriverException: Message: Unsupported Marionette protocol version 2, required 3

1.2这个错误原因是firefox版本过低了，最新的selenium3.0版本支持firefox47以上的版本，升级版本就可以了

第四个报错问题

WebDriverException: Message: newSession

1.1Traceback (most recent call last)：

File “D:\test\python3\lib\site-packages\selenium\webdriver\firefox\\webdriver.py”, line 170, in initkeep_alive=True)File “D:\test\python3\lib\site-packages\selenium\webdriver\firefox\\webdriver.py”, line 156, in initself.start_session(capabilities, browser_profile)File “D:\test\python3\lib\site-packages\selenium\webdriver\firefox\\webdriver.py”, line 245, in start_sessionresponse = self.execute(Command.NEW_SESSION, parameters)File “D:\test\python3\lib\site-packages\selenium\webdriver\firefox\\webdriver.py”, line 314, in executeself.error_handler.check_response(response)File “D:\test\python3\lib\site-packages\selenium\webdriver\firefox\\errorhandler.py”, line 242, in check_responseraise exception_class(message, screen, stacktrace)selenium.common.exceptions.WebDriverException: Message: newSession

1.2下载最新的geckodriver.exe 然后把它放到python的安装目录下

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