What Does the “Software Error Type Null” Mean in the PortPro Driver App?

What is the “Software error type 'Null'” message?

This error typically appears as:
"Software error type 'Null' is not a subtype of type 'Map' in type cast among driver profiles"
It means the app is having trouble loading driver data, usually due to permissions or outdated settings.

How do I fix it?

Try the following steps:

1. Close and restart the app

   • Fully exit the PORTPRO V2 app and open it again.

2. Check app permissions

   • On your phone or tablet:

     • Go to Settings > Apps > PORTPRO V2

     • Ensure all necessary permissions are turned on (especially Location and Storage).

3. Make sure GPS is enabled

   • The Driver App requires GPS to function correctly. Confirm that your device’s location services are turned on.

4. Update the app and your device software

   • Update the PORTPRO V2 app via the App Store or Play Store.

   • Make sure your device is running the latest operating system version.

What if the error still shows after trying all that?

If the error persists:

• Contact PortPro Support at support@portpro.io or use the in-app chat.

• Share your device type, OS version, and (if possible) a screenshot of the error.