I am currently building a mobile project called BLE Indoor Positioning System. However, I am suffered from a problem above and I have not been able to solve it. Would really appreciate if someone could explain for me what this error is?
Source code: https://github.com/BuiHuyTam/BLE-Indoor-Positioning-System
I have tried so many different ways to solve this problem. However, it didn't work
- Upgrade flutter version
- Using MaterialApp instead of GetMaterialApp