环境：
Android 6.0
appium 1.7.1
appium卡在如下地方：
cmd报错：
Exception in thread “main” org.openqa.selenium.WebDriverException: An unknown server-side error occurred while processing the command. Original error: Error getting device platform version. Original error: Error executing adbExec. Original error: ‘Command ‘‘C:\\Program Files (x86)\\android-sdk-windows\\platform-tools\\adb.exe’ -P 5037 -s T7G7N16108003663 shell getprop ro.build.version.release’ timed out after 20000ms’; Stderr: ‘’; Code: ‘null’ (WARNING: The server did not provide any stacktrace information)
Command duration or timeout: 683.88 seconds
Build info: version: ‘unknown’, revision: ‘unknown’, time: ‘unknown’
System info: host: ‘LAPTOP-QVA6S4LH’, ip: ‘192.168.1.197’, os.name: ‘Windows 10’, os.arch: ‘amd64’, os.version: ‘10.0’, java.version: ‘1.8.0_131’
Driver info: driver.version: AndroidDriver
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at org.openqa.selenium.remote.ErrorHandler.createThrowable(ErrorHandler.java:214)
at org.openqa.selenium.remote.ErrorHandler.throwIfResponseFailed(ErrorHandler.java:166)
at org.openqa.selenium.remote.JsonWireProtocolResponse.lambda$new$0(JsonWireProtocolResponse.java:53)
at org.openqa.selenium.remote.JsonWireProtocolResponse.lambda$getResponseFunction$2(JsonWireProtocolResponse.java:91)
at org.openqa.selenium.remote.ProtocolHandshake.lambda$createSession$24(ProtocolHandshake.java:359)
at java.util.stream.ReferencePipeline$3$1.accept(Unknown Source)
at java.util.Spliterators$ArraySpliterator.tryAdvance(Unknown Source)
at java.util.stream.ReferencePipeline.forEachWithCancel(Unknown Source)
at java.util.stream.AbstractPipeline.copyIntoWithCancel(Unknown Source)
at java.util.stream.AbstractPipeline.copyInto(Unknown Source)
at java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source)
at java.util.stream.FindOps$FindOp.evaluateSequential(Unknown Source)
at java.util.stream.AbstractPipeline.evaluate(Unknown Source)
at java.util.stream.ReferencePipeline.findFirst(Unknown Source)
at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:362)
at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:136)
at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:142)
at io.appium.java_client.remote.AppiumCommandExecutor.execute(AppiumCommandExecutor.java:89)
at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:586)
at io.appium.java_client.DefaultGenericMobileDriver.execute(DefaultGenericMobileDriver.java:42)
at io.appium.java_client.AppiumDriver.execute(AppiumDriver.java:1)
at io.appium.java_client.android.AndroidDriver.execute(AndroidDriver.java:1)
at org.openqa.selenium.remote.RemoteWebDriver.startSession(RemoteWebDriver.java:217)
at org.openqa.selenium.remote.RemoteWebDriver.(RemoteWebDriver.java:140)
at io.appium.java_client.DefaultGenericMobileDriver.(DefaultGenericMobileDriver.java:38)
at io.appium.java_client.AppiumDriver.(AppiumDriver.java:83)
at io.appium.java_client.AppiumDriver.(AppiumDriver.java:93)
at io.appium.java_client.android.AndroidDriver.(AndroidDriver.java:72)
at com.testerhome.appcrawler.driver.AppiumClient.appium(AppiumClient.scala:163)
at com.testerhome.appcrawler.driver.AppiumClient.(AppiumClient.scala:39)
at com.testerhome.appcrawler.Crawler.setupAppium(Crawler.scala:263)
at com.testerhome.appcrawler.Crawler.start(Crawler.scala:133)
at com.testerhome.appcrawler.AppCrawler$.startCrawl(AppCrawler.scala:344)
at com.testerhome.appcrawler.AppCrawler$.parseParams(AppCrawler.scala:312)
at com.testerhome.appcrawler.AppCrawler$.main(AppCrawler.scala:92)
at com.testerhome.appcrawler.AppCrawler.main(AppCrawler.scala)