NoAnnotationError

Thrown when the class has no annotation information.

Lack of annotation information prevents the Injector from determining which dependencies need to be injected into the constructor.

class A { A(b); }

expect(() => Injector.resolveAndCreate(A), throws);

This error is also thrown when the class not marked with Injectable has parameter types.

class B {}

class A { A(B b) {} // no information about the parameter types of A is available. }

expect(() => Injector.resolveAndCreate(A,B), throws);