after Flutter Upgrade. showing this error

[hridoycse197]

Error: Cannot invoke a non-'const' constructor where a const expression is expected.
options.dart:313
Try using a constructor or factory that is 'const'

[xclud]

The problem doesnt relate to the package. It's your code. You have upgraded the linter package and the new linter wants you to use the const constructor where possible.

Usually running dart fix . fixes them automatically. Or you can do it manually.

[xclud]

dart fix --apply