Unable to instantiate activity ComponentInfo

Question

I am developing an application for Froyo as minimum version and Gingerbread as the target version. So, the manifest shows:

Answer 1

For me, as it was during an upgrade of phonegap (from 1.4 to 1.8.1 ). I had to update the .project file on root project. I create a new project and compare the new file with the former.