unnecessary_const

Unnecessary 'const' keyword.

The analyzer produces this diagnostic when the keyword const is used in a constant contextConstant contextA region of code where the const keyword is implied and everything within that region must be a constant. Learn more. The keyword isn't required because it's implied.

The following code produces this diagnostic because the keyword const in the list literal isn't needed:

const l = const <int>[];

The list is implicitly const because of the keyword const on the variable declaration.

Remove the unnecessary keyword:

const l = <int>[];