I've recently been working to convert my background service plugin over to Plugman format. In doing so I've upgraded to Cordova 3.3.0 - and suddenly the tried and tested HelloWorld project fails to work in Eclipse.
This article describes how I get round this.
This comes down to a change the project team made in how the Cordova library code is compiled in. Within the 3.3.0 release, they changed it from a jar to included source code. The actual change is referenced here: https://issues.apache.org/jira/browse/CB-5232
In my searching, I found this post: http://stackoverflow.com/questions/20659853/cordova-ant-jar-not-available
This recommends importing the HelloWorld AND HelloWorld-CordovaLib project that Eclipse will find within platform/Android. However I've been unable to make this work. Eclipse just doesn't recognize the sub project correctly.
I've found this works for me. I'd be interested to see if there is a better way of doing.
After creating a new project:
I open Eclipse, and select File -> New -> Other -> Android Project from Existing Code.
Within the dialog, select the platforms\android folder of the HelloWorld project. I select ONLY the HelloWorld project and tick the Copy projects into workspace and click on the Finish.
I then right click the project and select Properties -> Java Build Path -> Source and Add Folder to include the CordovaLib\src folder
I can then build the project.