undefined_static_member_write

The constant '{0}' in the {1} '{2}' can't be assigned to.

The function type '{0}' doesn't have a static setter named '{1}'.

The member '{0}' is declared in '{1}', but private names are visible only in their own library.

The static field '{0}' in the {1} '{2}' is final, so it can't be assigned to.

The {0} '{1}' doesn't have a static setter named '{2}'.

The {0} '{1}' in the {2} '{3}' can't be assigned to.

There's a static getter '{0}' in the {1} '{2}', but no setter.

The analyzer produces this diagnostic when a value is assigned to a static member of a class, enum, mixin, extension type, or extension, but the declaration doesn't have an accessible static setter or non-final static field with that name.

The following code produces this diagnostic because the class C doesn't declare a static setter named b:

class C {
  static int a = 0;
}
​
void f() {
  C.b = 1;
}

The following code produces this diagnostic because the static field a is final:

class C {
  static final int a = 0;
}
​
void f() {
  C.a = 1;
}

If you intended to assign a different static member, then use its name:

class C {
  static int a = 0;
}
​
void f() {
  C.a = 1;
}

If the setter isn't declared, then declare it or remove the assignment.