No associated named super constructor parameterDRT-W1631

The analyzer produces this diagnostic when there's a named super parameter in a constructor and the implicitly or explicitly invoked super constructor doesn't have a named parameter with the same name.

Named super parameters are associated by name with named parameters in the super constructor.

Example

The following code produces this diagnostic because the constructor in A doesn't have a parameter named y:

class A {
  A({int? x});
}

class B extends A {
  B({super.y});
}

Common fixes

If the super parameter should be associated with an existing parameter from the super constructor, then change the name to match the name of the corresponding parameter:

class A {
  A({int? x});
}

class B extends A {
  B({super.x});
}

If the super parameter should be associated with a parameter that hasn't yet been added to the super constructor, then add it:

class A {
  A({int? x, int? y});
}

class B extends A {
  B({super.y});
}

If the super parameter doesn't correspond to a named parameter from the super constructor, then change it to be a normal parameter:

class A {
  A({int? x});
}

class B extends A {
  B({int? y});
}