MOTOSHARE 🚗🏍️
Turning Idle Vehicles into Shared Rides & Earnings
From Idle to Income. From Parked to Purpose.
Earn by Sharing, Ride by Renting.
Where Owners Earn, Riders Move.
Owners Earn. Riders Move. Motoshare Connects.
With Motoshare, every parked vehicle finds a purpose.
Owners earn. Renters ride.
🚀 Everyone wins.
You must update your flutter/dart version like this (in your pubspec.yaml):

In order to enable null safety, the lower bound of the SDK version should be 2.12.0 or higher. The provided requirement, “sdk: ‘>=2.1.0 <3.0.0′”, does not meet this criteria, as the minimum required version is 2.12.0. To enable null safety, you should update the SDK version to at least 2.12.0.
environment: sdk: ">=2.7.0 <3.0.0"
You must update your flutter/dart version like this (in your pubspec.yaml):
environment:
sdk: ">=2.18.0"
Code language: JavaScript (javascript)
Be prepared to make changes on your project/code due null safety
Or seek to find a lower version of that “dropdown_formfield” that can be supported by your actual flutter/dart version.