org.openqa.selenium.WebDriverException: No command or response codec has been defined. Unable to proceed Build info: version: 'unknown', revision: '3169782', time: '2016-09-29 10:24:50 -0700' System info: host: 'PKL-AIQBAL-W7', ip: '137.202.157.127', os.name: 'Windows 7', os.arch: 'amd64', os.version: '6.1', java.version: '1.8.0_91' Driver info: driver.version: RemoteWebDriver

Hot problem!
This exception has a lot of traffic. You can help 15 users by writing a short tip.

Solutions on the web7

Solution icon of stackoverflow
No command or response codec has been defined. Unable to proceed Build info: version: 'unknown', revision: '3169782', time: '2016-09-29 10:24:50 -0700' System info: host: 'PKL-AIQBAL-W7', ip: '137.202.157.127', os.name: 'Windows 7', os.arch: 'amd64', os.version: '6.1', java.version: '1.8.0_91' Driver info: driver.version: RemoteWebDriver

Solution icon of stackoverflow
No command or response codec has been defined. Unable to proceed Build info: version: 'unknown', revision: '3169782', time: '2016-09-29 10:24:50 -0700' System info: host: 'PKL-AIQBAL-W7', ip: '137.202.157.127', os.name: 'Windows 7', os.arch: 'amd64', os.version: '6.1', java.version: '1.8.0_91' Driver info: driver.version: RemoteWebDriver

Solution icon of stackoverflow
No command or response codec has been defined. Unable to proceed Build info: version: 'unknown', revision: 'unknown', time: 'unknown' System info: host: 'WPANDBW7HYD', ip: '192.168.56.1', os.name: 'Windows 7', os.arch: 'amd64', os.version: '6.1', java.version: '1.8.0_74' Driver info: driver.version: RemoteWebDriver

Solution icon of stackoverflow
No command or response codec has been defined. Unable to proceed Build info: version: '3.0.1', revision: '1969d75', time: '2016-10-18 09:48:44 -0700' System info: host: 'GTM5-PC', ip: '192.168.0.104', os.name: 'Windows 7', os.arch: 'x86', os.version: '6.1', java.version: '1.8.0_11' Driver info: driver.version: AndroidDriver

Solution icon of stackoverflow
No command or response codec has been defined. Unable to proceed Build info: version: '3.4.0', revision: 'unknown', time: 'unknown' System info: host: 'DESKTOP-AGEFV4C', ip: '192.168.134.1', os.name: 'Windows 10', os.arch: 'amd64', os.version: '10.0', java.version: '1.8.0_121' Driver info: driver.version: CustomRemoteWebDriver

Solution icon of stackoverflow
No command or response codec has been defined. Unable to proceed Build info: version: '3.0.1', revision: '1969d75', time: '2016-10-18 09:49:13 -0700' System info: host: 'GMCSs-Mac-mini.local', ip: '192.168.1.24', os.name: 'Mac OS X', os.arch: 'x86_64', os.version: '10.11.6', java.version: '1.8.0_74' Driver info: driver.version: RemoteWebDriver

Solution icon of stackoverflow
No command or response codec has been defined. Unable to proceed Build info: version: '3.4.0', revision: 'unknown', time: 'unknown' System info: host: 'john-laptop', ip: 'whatever', os.name: 'Mac OS X', os.arch: 'x86_64', os.version: '10.12.5', java.version: '1.8.0_112' Driver info: driver.version: SessionSavingRemoteWebDriver

Stack trace

org.openqa.selenium.WebDriverException: No command or response codec has been defined. Unable to proceed
Build info: version: 'unknown', revision: '3169782', time: '2016-09-29 10:24:50 -0700'
System info: host: 'PKL-AIQBAL-W7', ip: '137.202.157.127', os.name: 'Windows 7', os.arch: 'amd64', os.version: '6.1', java.version: '1.8.0_91'
Driver info: driver.version: RemoteWebDriver
	at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:153)
	at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:602)
	at io.appium.java_client.AppiumDriver.execute(AppiumDriver.java:180)
	at org.openqa.selenium.remote.RemoteWebDriver.findElement(RemoteWebDriver.java:369)
	at org.openqa.selenium.remote.RemoteWebDriver.findElementById(RemoteWebDriver.java:418)
	at DesiredCap.test(DesiredCap.java:40)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)

Write tip

You have a different solution? A short tip here would help you and many other users who saw this issue last week.

Users with the same issue

You are the first who have seen this exception. Write a tip to help other users and build your expert profile.