Due to a change of computers, I had to do a new installation of Eclipse and the Android SDK. I copied over my work environment (directory) and voila, everything works fine when compiling and running my app in the emulator.
However, when creating a distribution package, the generated .apk file is just about +half the size of the previous versions+ and produces the +"There was a problem parsing the package"+ eror message when trying to install it on a phone.
On a closer check, I found that the following files are not added to the .apk file:
res/ folder
AndroidManifest.xml
resources.arsc
There are no error messages in the Error log in Eclipse and I have already disabled Proguard (just to sort it out as a possible cause). Any idea?