NB 6.1: web service on tomcat

Hello,

I worked on NB 5.5 and successfully deployed web service as a war file. but I am facing a problem with NB 6.1.

I created a new web application project and chose tomcat 6 as a container. then developed a web service.When I deploy the WS, an error arose (the context /webapplication1 did not start)!

Are there anyone faced such problem ?

I would appreciate if anyone help me
Thanks,
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Motaz K. Saad