Automation Testing related query

Facing the below issue in Eclipse. Attached the logs. please help with your suggestions 1493505852004 geckodriver INFO Listening on 127.0.0.1:32725 1493505852739 mozprofile::profile INFO Using profile path C:\Users\arora\AppData\Local\Temp\rust_mozprofile.ameyOkKY6RPS 1493505852744 geckodriver::marionette INFO Starting browser C:\Program Files (x86)\Mozilla Firefox\firefox.exe with args [] 1493505852744 geckodriver::marionette INFO Connecting to Marionette on localhost:53292 IPDL protocol error: Handler returned error code!

!!! [Parent][DispatchAsyncMessage] Error: PLayerTransaction::Msg_ReleaseLayer Processing error: message was deserialized, but the handler returned false (indicating failure)

IPDL protocol error: Handler returned error code!

!!! [Parent][DispatchAsyncMessage] Error: PLayerTransaction::Msg_ReleaseLayer Processing error: message was deserialized, but the handler returned false (indicating failure)

[GPU 6784] WARNING: pipe error: 109: file c:/builds/moz2_slave/m-rel-w32-00000000000000000000/build/src/ipc/chromium/src/chrome/common/ipc_channel_win.cc, line 346 1493505857734 Marionette INFO Listening on port 53292 Apr 29, 2017 3:44:18 PM org.openqa.selenium.remote.ProtocolHandshake createSession INFO: Detected dialect: W3C Exception in thread "main" org.openqa.selenium.InvalidArgumentException: Expected [object Undefined] undefined to be a string Build info: version: '3.3.1', revision: '5234b32', time: '2017-03-10 09:04:52 -0800' System info: host: 'SAGAR', ip: '192.168.1.3', os.name: 'Windows 8.1', os.arch: 'amd64', os.version: '6.3', java.version: '1.8.0_91' Driver info: org.openqa.selenium.firefox.FirefoxDriver Capabilities [{moz:profile=C:\Users\arora\AppData\Local\Temp\rust_mozprofile.ameyOkKY6RPS, rotatable=false, timeouts={implicit=0, pageLoad=300000, script=30000}, pageLoadStrategy=normal, platform=ANY, specificationLevel=0, moz:accessibilityChecks=false, acceptInsecureCerts=false, browserVersion=53.0, platformVersion=6.3, moz:processID=6264, browserName=firefox, platformName=windows_nt}] Session ID: f85ef783-51ac-4d6b-a228-6835999ae465 at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at org.openqa.selenium.remote.http.W3CHttpResponseCodec.createException(W3CHttpResponseCodec.java:133) at org.openqa.selenium.remote.http.W3CHttpResponseCodec.decode(W3CHttpResponseCodec.java:99) at org.openqa.selenium.remote.http.W3CHttpResponseCodec.decode(W3CHttpResponseCodec.java:43) at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:163) at org.openqa.selenium.remote.service.DriverCommandExecutor.execute(DriverCommandExecutor.java:82) at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:604) at org.openqa.selenium.remote.RemoteWebElement.execute(RemoteWebElement.java:274) at org.openqa.selenium.remote.RemoteWebElement.sendKeys(RemoteWebElement.java:98) at Gmail.main(Gmail.java:25)