"There is a problem parsing the package" error usually arises due to anyone or all of the following reasons.
1. The exported apk is programmed in an advanced version of sdk rather than in the version in the android mobile. Solution :- try setting the minSdkVersion tag in your Android Manifest to support the version of your android mobile
2. Check the name of your exported apk. sometimes it has to be same as the project name. (Don't change the name of your apk after application signing process) 3. Check your code in emulator once. (I believe you did that already. )