1、在 appium 官网上下载安装后，下载的是1.7.1的版本，安装之后是1.9.1最新版本。
2、appium安装之后，会发现涉及到 浏览器相关的业务时（我使用的是chrome)会提示 “No Chromedriver found that can automate Chrome '62.0.3202'”。
1 # -*- coding:utf-8 -*-
2 '''
3 Created on Sep 30, 2018
4
5 @author: SaShuangYiBing
6
7 Comment:
8 '''
9 from appium import WEBdriver
10 desired_caps = {}
11 desired_caps['platfORMName'] ='Android'
12 desired_caps['platformVersion'] ='7.0'
13 desired_caps['deviceName'] ='DIYTHYTCCQBIV47D'
14 desired_caps['browserName'] = 'Chrome'
15
16 desired_caps["unicodeKeyboard"] ="True"
17 desired_caps["reseTKEyboard"] ="True"
18 driver = webdriver.Remote('Http://localhost:4723/wd/hub', desired_caps)
19
20
21 print(driver.current_package)
22 print(driver.current_activity)
23
24
25 #输出错误如下：
26 Traceback (most recent call last):
27 File "D:\WorkSpace3\EXAMPLE\Appiu_ex\qwsa.py", line 18, in <module>
28 driver = webdriver.Remote('http://localhost:4723/wd/hub', desired_caps)
29 File "C:\Program Files\python36\lib\site-packages\appium\webdriver\webdriver.py", line 97, in __init__
30 super(WebDriver, self).__init__(command_executor, desired_capabilities, browser_profile, proxy, keep_alive)
31 File "C:\Program Files\python36\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 157, in __init__
32 self.start_session(capabilities, browser_profile)
33 File "C:\Program Files\Python36\lib\site-packages\appium\webdriver\webdriver.py", line 136, in start_session
34 response = self.execute(RemoteCommand.NEW_SESSION, parameters)
35 File "C:\Program Files\Python36\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 321, in execute
36 self.error_handler.check_response(response)
37 File "C:\Program Files\Python36\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 242, in check_response
38 raise exception_class(message, screen, stacktrace)
39 selenium.common.exceptions.WebDriverException: Message: An unknown server-side error occurred while processing the command. Original error: No Chromedriver found that can automate Chrome '62.0.3202'. See https://GitHub.com/appium/appium/blob/master/docs/en/writing-running-appium/web/chromedriver.md for more details.
3、按照错误提示提供的 github 链接去查看如何安装这个driver，发现使用 npm 命令进行安装。
4、打开命令行窗口，输入npm 提示命令无效，接下来就得要先安装某个软件才能支持这个命令，网上上查找一翻之后是要安装 node.js，之前老的appium版本(v1.4左右）是会自带这个node.js的，新版本目前未发现。
5、前往 Node.js 官网下载跟系统匹配的版本进行安装，安装时一路点 Next 直到 Finish 即可。
6、重新打开命令窗口，输入 npm -v 会提示出版本号，如果未显示出版本号则可能是安装出问题，请将上面步骤重新跑一遍。
7、然后查找浏览器的版本号，找到对应的chrmoedriver 版本号，匹配关系如下：
The following is a list of Chromedriver versions and their corresponding minimum Chrome version that is automatable:
| Version | Minimum Chrome Version | Link to Chromedriver |
|---|---|---|
| 2.42 | 68.0.3440.0 | v2.42 (link) |
| 2.41 | 67.0.3360.0 | v2.41 (link) |
| 2.40 | 66.0.3359.0 | v2.40 (link) |
| 2.39 | 66.0.3359.0 | v2.39 (link) |
| 2.38 | 65.0.3325.0 | v2.38 (link) |
| 2.37 | 64.0.3282.0 | v2.37 (link) |
| 2.36 | 63.0.3239.0 | v2.36 (link) |
| 2.35 | 62.0.3202.0 | v2.35 (link) |
| 2.34 | 61.0.3163.0 | v2.34 (link) |
| 2.33 | 60.0.3112.0 | v2.33 (link) |
| 2.32 | 59.0.3071.0 | v2.32 (link) |
| 2.31 | 58.0.3029.0 | v2.31 (link) |
| 2.30 | 58.0.3029.0 | v2.30 (link) |
| 2.29 | 57.0.2987.0 | v2.29 (link) |
| 2.28 | 55.0.2883.0 | v2.28 (link) |
| 2.27 | 54.0.2840.0 | v2.27 (link) |
| 2.26 | 53.0.2785.0 | v2.26 (link) |
| 2.25 | 53.0.2785.0 | v2.25 (link) |
| 2.24 | 52.0.2743.0 | v2.24 (link) |
| 2.23 | 51.0.2704.0 | v2.23 (link) |
| 2.22 | 49.0.2623.0 | v2.22 (link) |
| 2.21 | 46.0.2490.0 | v2.21 (link) |
| 2.20 | 43.0.2357.0 | v2.20 (link) |
| 2.19 | 43.0.2357.0 | v2.19 (link) |
| 2.18 | 43.0.2357.0 | v2.18 (link) |
| 2.17 | 42.0.2311.0 | v2.17 (link) |
| 2.16 | 42.0.2311.0 | v2.16 (link) |
| 2.15 | 40.0.2214.0 | v2.15 (link) |
| 2.14 | 39.0.2171.0 | v2.14 (link) |
| 2.13 | 38.0.2125.0 | v2.13 (link) |
| 2.12 | 36.0.1985.0 | v2.12 (link) |
| 2.11 | 36.0.1985.0 | v2.11 (link) |
| 2.10 | 33.0.1751.0 | v2.10 (link) |
| 2.9 | 31.0.1650.59 | v2.9 (link) |
| 2.8 | 30.0.1573.2 | v2.8 (link) |
| 2.7 | 30.0.1573.2 | v2.7 (link) |
| 2.6 | 29.0.1545.0 | v2.6 (link) |
| 2.5 | 29.0.1545.0 | v2.5 (link) |
| 2.4 | 29.0.1545.0 | v2.4 (link) |
| 2.3 | 28.0.1500.0 | v2.3 (link) |
| 2.2 | 27.0.1453.0 | v2.2 (link) |
| 2.1 | 27.0.1453.0 | v2.1 (link) |
| 2.0 | 27.0.1453.0 | v2.0 (link) |
上述chromedriver版本匹配及下载链接为：点击跳转
8、在命令行窗口输入 npm install appium --chromedriver_version="2.35" ，我的浏览器版本是 62.0.3202.84 对应匹配的 chromedriver为 2.35
9、待安装完成即可
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