Extjs doc not working within existing project [Aptana 3 and Extjs 3.3]

I followed all the steps descriped here:
http://wiki.appcelerator.org/display/tis/Importing+an+Existing+Project
http://wiki.appcelerator.org/display/tis/JavaScript+Library+Support

Take a look at the screenshot I've taken of my project. The .sdocml file is there within the project.

By making a new local project (not an existing project) the code assist works perfectly. I've tried a PHP project a WEB project and both a WEB and PHP project, but none of it works.

I regularly get an error message "Content Assist" did not complete .... as well (look at the attachment)

I'm using Win 7 64bit
For more details have a look at the config file I've attached