STS Web-Services Tutorial Project doesn't find embedded Tomcat server

[arick]

When I try to follow the tutorial on Spring Web-Services, at the final step, when STS is supposed to start the tcServer, it says that it needs to download a new installation of Tomcat. When I grant it permission, it flashes a series of screens too quickly to follow, then proceeds to pretend that everything is fine. But when I go to the final step and actually try to run the client, it failed.
I have tried a number of steps, including different operating systems and JDK's etc. I have it down to a fairly clean error:

The Tomcat installation directory is not valid. It is missing expected file or folder lib/jasper-el.jar.

Needless to say, the next step "Create the Client", fails with a "Not Found [404]" error from the connection attempt to the server.

Two key steps seemed to be critical to get me this far.
(1) Ensure that the path to the JDK and to the Spring install do not contain any spaces,
(2) Have the server already running when you get to the step "Run the Server".

I am not confident that I am approaching this correctly.
1) Why would the tutorial have a step that says "Run the Server", when the reader is expected to have already started the server independently of the tutorial?
2) Why would the STS not provide a critical jar file?

Any suggestions?