illegal_enum_values

An instance member named 'values' can't be declared in a class that implements 'Enum'.

An instance member named 'values' can't be inherited from '{0}' in a class that implements 'Enum'.

The analyzer produces this diagnostic when either a class that implements Enum or a mixin with a superclass constraint of Enum has an instance member named values.

The following code produces this diagnostic because the class C, which implements Enum, declares an instance field named values:

abstract class C implements Enum {
  int get values => 0;
}

The following code produces this diagnostic because the class B, which implements Enum, inherits an instance method named values from A:

abstract class A {
  int values() => 0;
}

abstract class B extends A implements Enum {}

Change the name of the conflicting member:

abstract class C implements Enum {
  int get value => 0;
}

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