【你来问我来答第100期】：如何走出自动化测试第一步(活动结束）

bling123

你好，我在做移动测试的时候遇到这样的问题一直没有很好地解决方法：
安卓手机：真机，安卓8.0
appium版本：1.4
框架：python+appium+unittest
问题：TypeError: undefined is not a function说方法未定义，我已经import模块了呀
报错信息：
info: Starting App
info: [debug] Attempting to kill all 'uiautomator' processes
info: [debug] Getting all processes with 'uiautomator'
error: Unhandled error: TypeError: undefined is not a function
at [object Object].ADB.getPIDsByName (D:\Appium\loadspace\Appium\node_modules\appium\node_modules\appium-adb\lib\adb.js:1037:8)
at [object Object].ADB.killProcessesByName (D:\Appium\loadspace\Appium\node_modules\appium\node_modules\appium-adb\lib\adb.js:1079:8)
at [object Object].UiAutomator.start (D:\Appium\loadspace\Appium\node_modules\appium\lib\devices\android\uiautomator.js:29:12)
at [object Object]. (D:\Appium\loadspace\Appium\node_modules\appium\lib\devices\android\android.js:115:37)
at D:\Appium\loadspace\Appium\node_modules\appium\node_modules\async\lib\async.js:607:21
at D:\Appium\loadspace\Appium\node_modules\appium\node_modules\async\lib\async.js:246:17
at iterate (D:\Appium\loadspace\Appium\node_modules\appium\node_modules\async\lib\async.js:146:13)
at D:\Appium\loadspace\Appium\node_modules\appium\node_modules\async\lib\async.js:157:25
at D:\Appium\loadspace\Appium\node_modules\appium\node_modules\async\lib\async.js:248:21
at D:\Appium\loadspace\Appium\node_modules\appium\node_modules\async\lib\async.js:612:34
at [object Object].androidCommon.initUnicode (D:\Appium\loadspace\Appium\node_modules\appium\lib\devices\android\android-common.js:878:5)
at D:\Appium\loadspace\Appium\node_modules\appium\node_modules\async\lib\async.js:607:21
at D:\Appium\loadspace\Appium\node_modules\appium\node_modules\async\lib\async.js:246:17
at iterate (D:\Appium\loadspace\Appium\node_modules\appium\node_modules\async\lib\async.js:146:13)
at D:\Appium\loadspace\Appium\node_modules\appium\node_modules\async\lib\async.js:157:25
at D:\Appium\loadspace\Appium\node_modules\appium\node_modules\async\lib\async.js:248:21
at D:\Appium\loadspace\Appium\node_modules\appium\node_modules\async\lib\async.js:612:34
at [object Object]. (D:\Appium\loadspace\Appium\node_modules\appium\node_modules\appium-adb\lib\adb.js:180:9)
at ChildProcess.exithandler (child_process.js:742:7)
at ChildProcess.emit (events.js:110:17)
at maybeClose (child_process.js:1016:16)
at Process.ChildProcess._handle.onexit (child_process.js:1088:5) context: [POST /wd/hub/session {"capabilities":{"firstMatch":[{}],"alwaysMatch":{"platformName":"Android","appium:platformVersion":"5.0","appium:deviceName":"NPE4C17302001740:5037","appium:appPackage":"com.njzx.care","appium:appAct]