I'm sure that the library.apk file error was because I had added the library project to my app project build path.
The other problem, where app project classes could not see library project classes was due to something else. For some strange reason, even when the android library compiles by itself (I mean, does not show any errors in eclipse), it can give compiler errors when used as a library in another project. In that situation, it does not show up like "LibProject" in your png file. In my situation, this was caused by a problem with a custom widgets I had defined in my library. The attrs.xml file was being ignored for some reason. Everything worked fine (i.e. the LibProject showed up as in your png file) when I removed those custom widget (I'm not talking about homescreen widgets) attributes from the relevant layout xml in the library project. Sorry all this is a bit vague. I'll try and come up with a clearer scenario but I'm right in the middle of something now. -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en

