CodeWarrior do not import rss file

[wcleung9]

I am using CodeWarrior, with series 60 SDK for 2nd Edition FP 3 beta. I tried to run the HelloWorld example in the SDK. I imported the HelloWorld.mmp, compiled the source codes and ran it on the emulator.

It seemed to work fine, the "helloworld" message was displayed. However, I found that the option menu, that should have been implemented in the example, could not be opened by pressing the left-confirm phone-button. Then I found that the HelloWorld.rss file (that's the file which defines the option menu, right?) was not imported into CodeWarrior. I tried to manually import this single file, but it makes no difference. Is there any tricks I missed to import a project??