Google App Engine web.xml not found upon maven build

[Furqan Ahmed via StackOverflow]

I am new to Google App Engine Applications. I have created the GAE application using maven using guest book archetype and made some changes to the project and upon running project as maven build I have having the following exception. Can anyone please help me to resolve this exception.

[INFO] Jul 20, 2016 7:11:13 AM com.google.apphosting.utils.jetty.JettyLogger warn
[INFO] WARNING: EXCEPTION 
[INFO] com.google.apphosting.utils.config.AppEngineConfigException: Could not locate D:\workspace\gapps\target\gapps-0.0.1-SNAPSHOT\WEB-INF\web.xml
[INFO]  at com.google.apphosting.utils.config.AbstractConfigXmlReader.getInputStream(AbstractConfigXmlReader.java:127)
[INFO]  at com.google.apphosting.utils.config.AbstractConfigXmlReader.readConfigXml(AbstractConfigXmlReader.java:90)
[INFO]  at com.google.apphosting.utils.config.WebXmlReader.readWebXml(WebXmlReader.java:72)
[INFO]  at com.google.apphosting.utils.config.EarHelper.readWebModule(EarHelper.java:175)
[INFO]  at com.google.appengine.tools.development.ApplicationConfigurationManager$WarModuleConfigurationHandle.readConfiguration(ApplicationConfigurationManager.java:414)
[INFO]  at com.google.appengine.tools.development.JettyContainerService.reloadWebApp(JettyContainerService.java:414)
[INFO]  at com.google.appengine.tools.development.JettyContainerService$2.filesChanged(JettyContainerService.java:399)
[INFO]  at org.mortbay.util.Scanner.reportBulkChanges(Scanner.java:486)
[INFO]  at org.mortbay.util.Scanner.reportDifferences(Scanner.java:352)
[INFO]  at org.mortbay.util.Scanner.scan(Scanner.java:280)
[INFO]  at org.mortbay.util.Scanner$1.run(Scanner.java:232)
[INFO]  at java.util.TimerThread.mainLoop(Timer.java:555)
[INFO]  at java.util.TimerThread.run(Timer.java:505)
[INFO] Caused by: java.io.FileNotFoundException: D:\workspace\gapps\target\gapps-0.0.1-SNAPSHOT\WEB-INF\web.xml (The system cannot find the file specified)
[INFO]  at java.io.FileInputStream.open(Native Method)
[INFO]  at java.io.FileInputStream.<init>(FileInputStream.java:146)
[INFO]  at java.io.FileInputStream.<init>(FileInputStream.java:101)
[INFO]  at com.google.apphosting.utils.config.AbstractConfigXmlReader.getInputStream(AbstractConfigXmlReader.java:123)
[INFO]  ... 12 more
[INFO] 
[INFO] Jul 20, 2016 7:11:13 AM com.google.apphosting.utils.jetty.JettyLogger warn
[INFO] WARNING: com.google.appengine.tools.development.JettyContainerService$2@6f5f7161 failed on '[D:\workspace\gapps\target\gapps-0.0.1-SNAPSHOT\WEB-INF\classes\com\demo\gapps\server\Utils$NoRefreshTokenException.class, D:\workspace\gapps\target\gapps-0.0.1-SNAPSHOT\WEB-INF\classes\com\demo\gapps\OfyHelper.class, D:\workspace\gapps\target\gapps-0.0.1-SNAPSHOT\WEB-INF\classes\com\demo\gapps\server\Utils.class, D:\workspace\gapps\target\gapps-0.0.1-SNAPSHOT\WEB-INF\classes\com\demo\gapps\filter\AuthorizationFilter.class, D:\workspace\gapps\target\gapps-0.0.1-SNAPSHOT\WEB-INF\classes\com\demo\gapps\domain\AppUser.class, D:\workspace\gapps\target\gapps-0.0.1-SNAPSHOT\WEB-INF\classes\com\demo\gapps\domain\DatastoreObject.class, D:\workspace\gapps\target\gapps-0.0.1-SNAPSHOT\WEB-INF\classes\com\demo\gapps\server\Utils$CodeExchangeException.class, D:\workspace\gapps\target\gapps-0.0.1-SNAPSHOT\WEB-INF\classes\com\demo\gapps\Greeting.class, D:\workspace\gapps\target\gapps-0.0.1-SNAPSHOT\WEB-INF\classes\com\demo\gapps\Guestbook.class, D:\workspace\gapps\target\gapps-0.0.1-SNAPSHOT\WEB-INF\classes\com\demo\gapps\domain\AppUser$OauthCredentials.class, D:\workspace\gapps\target\gapps-0.0.1-SNAPSHOT\WEB-INF\classes\com\demo\gapps\server\Utils$NoUserIdException.class]

Thanks,

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