应用程序错误：uncaughtException:无法读取null的属性“executeAtom”

Question

我正在使用Selenium进行iOS移动应用测试。我在使用相应的

1. Appium版本1.3.7
2. 节点JS版本2.7.5
3. ios webkit调试代理
4. iphone5c
5. Xcode版本6.1

我正在使用一个shell脚本来帮助我检查ios\u webkit\u debug\u代理是否可用。如果不存在，它将在2秒内启动ios\u webkit\u debug\u代理。

我的测试很顺利。但在appium中仍然面临一些问题，appium被停止肯定会给出一个未捕获的异常：无法读取null的属性“executeAtom”

我试着用各种方法来解决这个问题。

1. 重新启动Appium并再次运行。

但是错误仍然存在。你能建议我如何解决这个问题吗？

为了您更好的理解，我附上了下面的日志文件。

info: [debug] [REMOTE] Sending javascript command
info: [debug] [REMOTE] Remote debugger data sent [{"method":"Runtime.evaluate","params":{"objectGroup":"console","includeCommandLineAPI":true,"doNotPauseOnExceptionsAndMuteConsole":true,"expression":"(function(){return function(){function h(a){return...]
Debugger web socket received data :  {"result":{"result":{"type":"string","value":"{\"status\":0,\"value\":[]}"},"wasThrown":false},"id":57}
info: [debug] Waited for 7659ms so far
info: --> POST /wd/hub/session/d102c79f-f695-4fbb-a020-45caf2af7b05/context {"name":"NATIVE_APP"}
info: [debug] Attempting to set context to 'NATIVE_APP'
info: [debug] Responding to client with success: {"status":0,"value":"","sessionId":"d102c79f-f695-4fbb-a020-45caf2af7b05"}
info:  POST /wd/hub/session/d102c79f-f695-4fbb-a020-45caf2af7b05/context {"name":"NATIVE_APP"}

info: [debug] Attempting to set context to 'NATIVE_APP'
info: [debug] Responding to client with success: {"status":0,"value":"","sessionId":"d102c79f-f695-4fbb-a020-45caf2af7b05"}
info: POST /wd/hub/session/d102c79f-f695-4fbb-a020-45caf2af7b05/context 200 0.862 ms - 74 {"status":0,"value":"","sessionId":"d102c79f-f695-4fbb-a020-45caf2af7b05"}
error: uncaughtException: Cannot read property 'executeAtom' of null date=Fri May 22 2015 11:40:38 GMT+0600 (BDT), pid=9153, uid=501, gid=20, cwd=/Applications/Appium.app/Contents/Resources/node_modules/appium, execPath=/Applications/Appium.app/Contents/Resources/node/bin/node, version=v0.12.1, argv=[/Applications/Appium.app/Contents/Resources/node/bin/node, /Applications/Appium.app/Contents/Resources/node_modules/appium/lib/server/main.js, --command-timeout, 7200, --platform-version, 7.1, --platform-name, iOS, --app, com.bjitgroup.putter, --udid, 0b72ccc692943f83fa2f83e78e8b3030a760fa5f, --device-name, iPhone 5], rss=218198016, heapTotal=187542272, heapUsed=76792360, loadavg=[1.51611328125, 1.689453125, 1.67431640625], uptime=71672, trace=[column=14, file=/Applications/Appium.app/Contents/Resources/node_modules/appium/lib/devices/ios/ios-controller.js,
 function=iOSController.executeAtom, line=647, method=executeAtom, native=false, column=10, file=/Applications/Appium.app/Contents/Resources/node_modules/appium/lib/devices/ios/ios-controller.js,
  function=, line=311, method=null, native=false, column=13, file=/Applications/Appium.app/Contents/Resources/node_modules/appium/lib/devices/common.js,
   function=, line=90, method=null, native=false, column=5, file=/Applications/Appium.app/Contents/Resources/node_modules/appium/lib/devices/common.js,
    function=, line=66, method=null, native=false, column=15, file=timers.js, function=Timer.listOnTimeout, line=110, method=listOnTimeout, native=false],
 stack=[TypeError: Cannot read property 'executeAtom' of null,
      at iOSController.executeAtom (/Applications/Appium.app/Contents/Resources/node_modules/appium/lib/devices/ios/ios-controller.js:647:14),
           at null. (/Applications/Appium.app/Contents/Resources/node_modules/appium/lib/devices/ios/ios-controller.js:311:10),
                at null. (/Applications/Appium.app/Contents/Resources/node_modules/appium/lib/devices/common.js:90:13),
                     at null. (/Applications/Appium.app/Contents/Resources/node_modules/appium/lib/devices/common.js:66:5),
                          at Timer.listOnTimeout (timers.js:110:15)]

Answer 1

请在github中关注此链接。我有一个解决方案，因为异步错误正在发生。

https://github.com/appium/appium/issues/5177