Inherited member is always abstract in the supertypeDRT-W1217
The analyzer produces this diagnostic when an inherited member is
referenced using super
, but there is no concrete implementation of the
member in the superclass chain. Abstract members can't be invoked.
Example
The following code produces this diagnostic because B
doesn't inherit a
concrete implementation of a
:
abstract class A {
int get a;
}
class B extends A {
int get a => super.a;
}
Common fixes
Remove the invocation of the abstract member, possibly replacing it with an invocation of a concrete member.