问题描述
getDriver（）函数返回iOS驱动程序的实例。尝试使用以下命令重置应用程序时出现以下错误，
Driver.getDriver().resetApp();
我还尝试如下用closeApp和launchApp替换此命令。但这同样会失败，并显示相同的错误。
Driver.getDriver().closeApp();
Driver.getDriver().launchApp();
该错误不是很有帮助，我也不确定如何解决此错误。有人可以帮我吗？
Unable to determine type from: Y. Last 1 characters read: Y
Build info: version: '3.141.59',revision: 'e82be7d358',time: '2018-11-14T08:17:03'
System info: host: 'Kishores-MBP',ip: 'fe80:0:0:0:35:43cd:351c:edd3%en0',os.name: 'Mac OS X',os.arch: 'x86_64',os.version: '10.14.6',java.version: '1.8.0_231'
Driver info: driver.version: IOSDriver
org.openqa.selenium.json.JsonException: Unable to determine type from: Y. Last 1 characters read: Y
Build info: version: '3.141.59',java.version: '1.8.0_231'
Driver info: driver.version: IOSDriver
at org.openqa.selenium.json.JsonInput.peek(JsonInput.java:122)
at org.openqa.selenium.json.JsonTypeCoercer.lambda$null$6(JsonTypeCoercer.java:140)
at org.openqa.selenium.json.JsonTypeCoercer.coerce(JsonTypeCoercer.java:126)
at org.openqa.selenium.json.Json.toType(Json.java:69)
at org.openqa.selenium.json.Json.toType(Json.java:55)
at org.openqa.selenium.json.Json.toType(Json.java:50)
at org.openqa.selenium.remote.http.W3CHttpResponseCodec.decode(W3CHttpResponseCodec.java:87)
at org.openqa.selenium.remote.http.W3CHttpResponseCodec.decode(W3CHttpResponseCodec.java:49)
at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:158)
at io.appium.java_client.remote.AppiumCommandExecutor.execute(AppiumCommandExecutor.java:239)
at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:552)
at io.appium.java_client.DefaultGenericMobileDriver.execute(DefaultGenericMobileDriver.java:45)
at io.appium.java_client.AppiumDriver.execute(AppiumDriver.java:1)
at io.appium.java_client.ios.IOSDriver.execute(IOSDriver.java:1)
at io.appium.java_client.InteractsWithApps.resetApp(InteractsWithApps.java:93)
at hid.SEOs.testCases.ui.ListEventsForEndpoint.initialise(ListEventsForEndpoint.java:27)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:134)
at org.testng.internal.MethodInvocationHelper.invokeMethodConsideringTimeout(MethodInvocationHelper.java:63)
at org.testng.internal.ConfigInvoker.invokeConfigurationMethod(ConfigInvoker.java:348)
at org.testng.internal.ConfigInvoker.invokeConfigurations(ConfigInvoker.java:302)
at org.testng.internal.TestInvoker.runconfigMethods(TestInvoker.java:695)
at org.testng.internal.TestInvoker.invokeMethod(TestInvoker.java:523)
at org.testng.internal.TestInvoker.invokeTestMethod(TestInvoker.java:173)
at org.testng.internal.MethodRunner.runInSequence(MethodRunner.java:46)
at org.testng.internal.TestInvoker$MethodInvocationAgent.invoke(TestInvoker.java:816)
at org.testng.internal.TestInvoker.invokeTestMethods(TestInvoker.java:146)
at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:146)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:128)
at java.util.ArrayList.forEach(ArrayList.java:1257)
at org.testng.TestRunner.privateRun(TestRunner.java:766)
at org.testng.TestRunner.run(TestRunner.java:587)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:384)
at org.testng.SuiteRunner.access$000(SuiteRunner.java:28)
at org.testng.SuiteRunner$SuiteWorker.run(SuiteRunner.java:425)
at org.testng.internal.thread.ThreadUtil.lambda$execute$0(ThreadUtil.java:68)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
解决方法
只需找出导致异常的根本原因。我花了足够长的时间，因为错误消息没有太大帮助。
根本原因：我在Appium中使用了pcloudy，而我只是错过了在pcloudyDesiredCapabilities中提到platformVersion的那一行。因此，如果其他任何人都遇到相同的问题，只需确保在初始化Webdriver（AndroidDriver或IOSDriver）时DesiredCapabilities部分中没有遗漏任何东西。