You should make changes to such project:
1. Move config.xml into /www
2. Adjust the paths to icons/splashes in config
3. Zip up the contents of /www (not the directory itself) and upload to PGB.
(This only applies to PGB, not to local builds, though)
My PGB is fine, its just the "phonegap serve" command that is causing problems when it is served to the PhoneGap app itself, not my own. Sorry, I suppose I should have mentioned this to begin with.
Since you're using the PhoneGap Developer app, how are you serving your app? "phonegap serve" or are you using the PhoneGap Desktop app? What does your project structure look like?
Do note that the PhoneGap Developer app, useful as it is, does not constitute an actual build of your app. It's useful for some testing (assuming you understand the edge cases), but to know if your app works for sure, you must create a real build using either the CLI or PGB.
I am using a brand new "Hello World" app, I ran "phonegap create myapp" then served it using the command "phonegap serve" on CLI to then see it on the official PhoneGap Developer App. I performed those steps and those steps only, to have the error:
This error appears when I press the "Connect" button in the Developer App, just after it is able to process and connect to my workspace.
What version of the PhoneGap Developer app are you using? And what version of the PhoneGap CLI?
PhoneGap Developer App at version 1.7.6
PhoneGap CLI at version 6.4.2