Exception in Selenium web driver

[RD94]

I was trying to write code to add a book in a cart.
"www.amazon.in" here I was trying to add add to cart.
driver.findElement(By.xpath("//input[@id='add-to-cart-button'][@type='button'][@name='submit.add-to-cart']")).click();
My code so far working fine. But when i try to click on add to cark...Its throwing exception as
Exception in thread "main" org.openqa.selenium.NoSuchElementException: no such element: Unable to locate element: {"method":"xpath","selector":"//input[@id='add-to-cart-button'][@type='button'][@name='submit.add-to-cart']"}
(Session info: chrome=56.0.2924.87)
(Driver info: chromedriver=2.28.455520 (cc17746adff54984afff480136733114c6b3704b),platform=Windows NT 6.1.7601 SP1 x86_64) (WARNING: The server did not provide any stacktrace information)
Command duration or timeout: 56 milliseconds
For documentation on this error, please visit: http://seleniumhq.org/exceptions/no_such_element.html
Build info: version: 'unknown', revision: '5234b32', time: '2017-03-10 09:00:17 -0800'
System info: host: 'EREV325', ip: '172.16.4.228', os.name: 'Windows 7', os.arch: 'amd64', os.version: '6.1', java.version: '1.8.0_45'
Driver info: org.openqa.selenium.chrome.ChromeDriver
Capabilities [{applicationCacheEnabled=false, rotatable=false, mobileEmulationEnabled=false, networkConnectionEnabled=false, chrome={chromedriverVersion=2.28.455520 (cc17746adff54984afff480136733114c6b3704b), userDataDir=C:\Users\jaitad\AppData\Local\Temp\scoped_dir7960_7412}, takesHeapSnapshot=true, pageLoadStrategy=normal, databaseEnabled=false, handlesAlerts=true, hasTouchScreen=false, version=56.0.2924.87, platform=XP, browserConnectionEnabled=false, nativeEvents=true, acceptSslCerts=true, locationContextEnabled=true, webStorageEnabled=true, browserName=chrome, takesScreenshot=true, javascriptEnabled=true, cssSelectorsEnabled=true, unexpectedAlertBehaviour=}]
Session ID: ed427292963a0ca8f7a5eb7d7d19122e
*** Element info: {Using=xpath, value=//input[@id='add-to-cart-button'][@type='button'][@name='submit.add-to-cart']}
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:216)
at org.openqa.selenium.remote.ErrorHandler.throwIfResponseFailed(ErrorHandler.java:168)
at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:638)
at org.openqa.selenium.remote.RemoteWebDriver.findElement(RemoteWebDriver.java:371)
at org.openqa.selenium.remote.RemoteWebDriver.findElementByXPath(RemoteWebDriver.java:476)
at org.openqa.selenium.By$ByXPath.findElement(By.java:361)
at org.openqa.selenium.remote.RemoteWebDriver.findElement(RemoteWebDriver.java:363)
at SelPro.SelCode.main(SelCode.java:37)