I managed to restructure my application pretty nicely so that, except for a few methods in a derived Activity class, everything is in a Library Project.
It works beautifully, except that Eclipse's Console (not LogCat!) issues the following error message:
[2011-06-13 19:54:08 - MyLibrary] Could not find MyLibrary.apk!
I cleaned both projects (library and application), restarted Eclipse, re-built the projects, but this weird error message persists.
What does this error message mean? (especially in light that everything seems to be running OK)
How do I get rid of it?
UPDATE: I tried removing the project then re-importing it per the suggestion below. It didn't help. I then found this thread that helped me realize that I had <uses-library> in the application's AndroidManifest.xml referring to MyLibrary. I deleted it, cleaned the project and rebuilt. The problem persists.
I am now suspecting this is "real problem", e.g. misconfiguration of some paths or something else on my part. What could it be?