Assuming that you are in the Extensions->Create Module area - Each module you define - needs to know the default control / resource that will be used when the View action is called for a module. That is what it is asking you to define.

But what exactly are you trying to do - you need to have already coded your module before you try to use the extensions area to define a new module installer - in which case you would have already created these files.

If you are actually trying to build a module for the first time - you should not be in the extensions area unless you have already coded you module - instead - you should look at using the Module Creator - which is on the Module dropdown of the host/admin toolbar.

Westa

And thanks for the reply BTW.