I had the same problem, however the solution was very easy. I had to Clean Tomcat server in eclipse before restarting it. To be more clear, here is how I set the context in Eclipse,
In the Servers in project explorer, find the Tomcat version you are using, open the server.xml file. Before the HOST closing tag (</Host>) add the context tag with the right parameters, e.g:
then right click on your Tomcat in the Server tab and Clean. Then restart the Tomcat. and you should be good to go.