报错
C:\Python27\python.exe "D:/Program Files (x86)AppiumAutoTest/case/start_appium.py"
Traceback (most recent call last):
File “D:/Program Files (x86)AppiumAutoTest/case/start_appium.py”, line 9, in
webdriver.Remote(“http://127.0.0.1:4723/wd/hub”,capabilities)
File “C:\Python27\lib\site-packages\appium\webdriver\webdriver.py”, line 36, in init
super(WebDriver, self).init(command_executor, desired_capabilities, browser_profile, proxy, keep_alive)
File “C:\Python27\lib\site-packages\selenium\webdriver\remote\webdriver.py”, line 157, in init
self.start_session(capabilities, browser_profile)
File “C:\Python27\lib\site-packages\selenium\webdriver\remote\webdriver.py”, line 252, in start_session
response = self.execute(Command.NEW_SESSION, parameters)
File “C:\Python27\lib\site-packages\selenium\webdriver\remote\webdriver.py”, line 321, in execute
self.error_handler.check_response(response)
File “C:\Python27\lib\site-packages\selenium\webdriver\remote\errorhandler.py”, line 242, in check_response
raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.WebDriverException: Message: An unknown server-side error occurred while processing the command. Original error: Cannot stop and clear cn.com.open.mooc. Original error: Error executing adbExec. Original error: ‘Command ‘‘D:\Program Files (x86)\sdk\platform-tools\adb.exe’ -P 5037 -s 127.0.0.1:21503 shell pm clear cn.com.open.mooc’ timed out after 20000ms’; Stderr: ‘’; Code: ‘null’

日志：
[ADB] Getting connected devices…
[ADB] 1 device(s) connected
[ADB] Running ‘D:\Program Files (x86)\sdk\platform-tools\adb.exe’ with args: ["-P",5037,"-s",“127.0.0.1:21503”,“shell”,“am”,“force-stop”,“io.appium.unlock”]
[AndroidDriver] Not cleaning generated files. Add clearSystemFiles capability if wanted.
[MJSONWP] Encountered internal error running command: Error: Cannot stop and clear cn.com.open.mooc. Original error: Error executing adbExec. Original error: ‘Command ‘‘D:\Program Files (x86)\sdk\platform-tools\adb.exe’ -P 5037 -s 127.0.0.1:21503 shell pm clear cn.com.open.mooc’ timed out after 20000ms’; Stderr: ‘’; Code: 'null’
at Object.wrappedLogger.errorAndThrow (C:\Users\Kerry_Amy\AppData\Local\Programs\appium-desktop\resources\app\node_modules\appium\node_modules\appium-support\lib\logging.js:69:13)
at ADB.callee$0$0$ (C:\Users\Kerry_Amy\AppData\Local\Programs\appium-desktop\resources\app\node_modules\appium\node_modules\appium-adb\lib\tools\adb-commands.js:347:9)
at tryCatch (C:\Users\Kerry_Amy\AppData\Local\Programs\appium-desktop\resources\app\node_modules\appium\node_modules\babel-runtime\regenerator\runtime.js:67:40)
at GeneratorFunctionPrototype.invoke [as _invoke] (C:\Users\Kerry_Amy\AppData\Local\Programs\appium-desktop\resources\app\node_modules\appium\node_modules\babel-runtime\regenerator\runtime.js:315:22)
at GeneratorFunctionPrototype.prototype.(anonymous function) [as throw] (C:\Users\Kerry_Amy\AppData\Local\Programs\appium-desktop\resources\app\node_modules\appium\node_modules\babel-runtime\regenerator\runtime.js?21)
at GeneratorFunctionPrototype.invoke (C:\Users\Kerry_Amy\AppData\Local\Programs\appium-desktop\resources\app\node_modules\appium\node_modules\babel-runtime\regenerator\runtime.js:136:37)
at
[HTTP] <-- POST /wd/hub/session 500 144766 ms - 420