Aptana "The selection cannot be launched, and there are no recent launches."

Question

Each time I click the "Run as" button, I get the following message.

"The selection cannot be launched, and there are no recent launches."

If I select the pull down arrow near the "Run as" button, and select the New configuration option (this is the configuration I setup to launch using localhost)... it works. But why doesn't the "Run as" button default to this?

Or better yet, how do I make sure the "Run as" button will default to this?

** UPDATE **

I solved the problem.. see my answer below.

Answer 1

Go into the preferences under Run/Debug > Launching

There's a section called "Launch Operation" and I needed to select:

Launch the selected resource or active editor. If no launchable: Launch the previously launched application.