There is a problem parsing the package while installing Android application

[mdparthi]

The main reason for the issue could be

1. You might have turned off “Allow installation from unknown resources”

2. The downloaded .apk is not fully downloaded or corrupted

3. The app is not compatible with the Hardware or version of the OS you are using

[mdparthi]

Solution: 1

If you are facing this issue in device using android 12. You can fix it by adding android:exported=“true” in AndroidManifest.xml as mentioned below

<activity
            android:name=".MainActivity"
            android:exported="true"
            android:configChanges="keyboard|keyboardHidden|orientation|screenSize|uiMode"
            android:label="@string/app_name"

[mdparthi]

Solution: 2

Instead of shooting in the dark, get the reason for this error by installing it via adb

adb -s emulator-5555 install ~/path-to-your-apk/com.app.apk

Replace emulator-5555 with your device name. You can obtain a list using:

adb devices

Upon failing, it will give a reason. Common reasons and their fixes:

1. INSTALL_PARSE_FAILED_NO_CERTIFICATES: Reference
2. INSTALL_FAILED_UPDATE_INCOMPATIBLE: Reference