Hello. I'm an android newbie, so hope this isn't a dumb question. I'm developing an android app that needs to transfer data between activities. Right now, I'm trying to use Java serialization to transfer a custom class. If I don't store the class object with myIntent.putExtra("key", myObject), the second Activity appears, but storing the object causes the app to crash. I'm suspecting something is missing in the manifest, but aren't sure. Can anybody help?