Selenium Webdriver | Unable to locate 'href' element - selenium

Question

I am trying to locate below link in Selenium Webdriver using Xpath and CSS.
<table width="100%" cellspacing="0" cellpadding="0" border="0">
<tbody>
<tr>
<tr>
<td class="cspbItmA">
<a class="cspbItm" target="_parent" href="../isp_track.asp?PARENT_MENU=Customer Order">Find Order</a>
</td>
</tr>
But neither of these options, I am unable to run the script and trapped with below exception:
driver.manage().timeouts().implicitlyWait(5, TimeUnit.SECONDS);
driver.findElement(By.xpath(".//*[#id='cspbGrp0']/table/tbody/tr[2]/td/a")) .click();
Starting ChromeDriver (v2.9.248315) on port 8139 Exception in thread
"main" org.openqa.selenium.NoSuchElementException: no such element
(Session info: chrome=40.0.2214.115) (Driver info:
chromedriver=2.9.248315,platform=Windows NT 6.1 SP1 x86) (WARNING: The
server did not provide any stacktrace information) Command duration or
timeout: 5.06 seconds For documentation on this error, please visit:
http://seleniumhq.org/exceptions/no_such_element.html Build info:
version: '2.42.0', revision:
'5e824302019c86eae9c8c3ca9155e7307b410cf8', time: '2014-05-24
09:48:41' System info: host: 'inl-279930-1', ip: '10.13.174.254',
os.name: 'Windows 7', os.arch: 'x86', os.version: '6.1', java.version:
'1.7.0_55' Session ID: 04489825ed0cfc399afa1ffccb838870 Driver info:
org.openqa.selenium.chrome.ChromeDriver Capabilities [{platform=XP,
acceptSslCerts=true, javascriptEnabled=true, browserName=chrome,
chrome={userDataDir=C:\Users\SUBRAM~1\AppData\Local\Temp\scoped_dir11808_15574},
rotatable=false, locationContextEnabled=true, version=40.0.2214.115,
takesHeapSnapshot=true, cssSelectorsEnabled=true,
databaseEnabled=false, handlesAlerts=true,
browserConnectionEnabled=false, nativeEvents=true,
webStorageEnabled=true, applicationCacheEnabled=false,
takesScreenshot=true}] at
sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at
org.openqa.selenium.remote.ErrorHandler.createThrowable(ErrorHandler.java:193)
at
org.openqa.selenium.remote.ErrorHandler.throwIfResponseFailed(ErrorHandler.java:145)
at
org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:596)
at
org.openqa.selenium.remote.RemoteWebDriver.findElement(RemoteWebDriver.java:349)
at
org.openqa.selenium.remote.RemoteWebDriver.findElementByXPath(RemoteWebDriver.java:446)
at org.openqa.selenium.By$ByXPath.findElement(By.java:357) at
org.openqa.selenium.remote.RemoteWebDriver.findElement(RemoteWebDriver.java:341)
at roll_forward_test.cpe_progression.main(cpe_progression.java:147)
Could you help me to get this fixed, please.

Answer 1

My preference would be to use css over xpath and I would usually write my own selectors. Because it's in a table it can be a little tricky (meaning you may have to traverse from further up) but from the information on screen I'd go for something like:
//by href
driver.findElement(By.cssSelector("a[href='../isp_track.asp?PARENT_MENU=Customer Order']"))
OR
//by class
driver.findElement(By.cssSelector("a.cspbItm"))

Answer 2

Issue identified and it is caused due to the element present inside an iFrame.
When switching to iFrame first, now able to locate the element.
Thank You,
Praveen