diff --git a/registry.go b/registry.go
index d0f9e55..9c72355 100644
--- a/registry.go
+++ b/registry.go
@@ -244,12 +244,12 @@ func (r *AnnotationRegistry) GetTypeAnnotation(t reflect.Type, at reflect.Type)
 	}
 
 	if 0 == len(td.typeAnnotation) {
-		return nil, fmt.Errorf("TypeAnnotation of type[%s] is not exist", td.rt.Name())
+		return nil, nil
 	}
 
 	a, ok := td.typeAnnotation[at]
 	if !ok {
-		return nil, fmt.Errorf("Annotation[%s] of type[%s] is not exist", at.Name(), td.rt.Name())
+		return nil, nil
 	}
 
 	return a, nil
@@ -265,7 +265,7 @@ func (r *AnnotationRegistry) GetTypeAnnotations(t reflect.Type) (map[reflect.Typ
 	}
 
 	if 0 == len(td.typeAnnotation) {
-		return nil, fmt.Errorf("TypeAnnotation of type[%s] is not exist", td.rt.Name())
+		return nil, nil
 	}
 
 	return td.typeAnnotation, nil
@@ -281,17 +281,17 @@ func (r *AnnotationRegistry) GetFieldAnnotation(t reflect.Type, name string, at
 	}
 
 	if 0 == len(td.fieldAnnotation) {
-		return nil, fmt.Errorf("FieldAnnotation of type[%s] is not exist", td.rt.Name())
+		return nil, nil
 	}
 
 	as, ok := td.fieldAnnotation[name]
 	if !ok || 0 == len(as) {
-		return nil, fmt.Errorf("Field[%s] Annotation of type[%s] is not exist", name, td.rt.Name())
+		return nil, nil
 	}
 
 	a, ok := as[at]
 	if !ok {
-		return nil, fmt.Errorf("Annotation[%s] of field[%s] in type[%s] is not exist", at.Name(), name, td.rt.Name())
+		return nil, nil
 	}
 
 	return a, nil
@@ -307,12 +307,12 @@ func (r *AnnotationRegistry) GetFieldAnnotations(t reflect.Type, name string) (m
 	}
 
 	if 0 == len(td.fieldAnnotation) {
-		return nil, fmt.Errorf("FieldAnnotation of type[%s] is not exist", td.rt.Name())
+		return nil, nil
 	}
 
 	as, ok := td.fieldAnnotation[name]
 	if !ok || 0 == len(as) {
-		return nil, fmt.Errorf("Field[%s] Annotation of type[%s] is not exist", name, td.rt.Name())
+		return nil, nil
 	}
 
 	return as, nil
@@ -328,7 +328,7 @@ func (r *AnnotationRegistry) GetAllFieldAnnotations(t reflect.Type) (map[string]
 	}
 
 	if 0 == len(td.fieldAnnotation) {
-		return nil, fmt.Errorf("FieldAnnotation of type[%s] is not exist", td.rt.Name())
+		return nil, nil
 	}
 
 	return td.fieldAnnotation, nil
@@ -344,17 +344,17 @@ func (r *AnnotationRegistry) GetMethodAnnotation(t reflect.Type, name string, at
 	}
 
 	if 0 == len(td.methodAnnotation) {
-		return nil, fmt.Errorf("MethodAnnotation of type[%s] is not exist", td.rt.Name())
+		return nil, nil
 	}
 
 	as, ok := td.methodAnnotation[name]
 	if !ok || 0 == len(as) {
-		return nil, fmt.Errorf("Method[%s] Annotation of type[%s] is not exist", name, td.rt.Name())
+		return nil, nil
 	}
 
 	a, ok := as[at]
 	if !ok {
-		return nil, fmt.Errorf("Annotation[%s] of method[%s] in type[%s] is not exist", at.Name(), name, td.rt.Name())
+		return nil, nil
 	}
 
 	return a, nil
@@ -370,12 +370,12 @@ func (r *AnnotationRegistry) GetMethodAnnotations(t reflect.Type, name string) (
 	}
 
 	if 0 == len(td.methodAnnotation) {
-		return nil, fmt.Errorf("MethodAnnotation of type[%s] is not exist", td.rt.Name())
+		return nil, nil
 	}
 
 	as, ok := td.methodAnnotation[name]
 	if !ok || 0 == len(as) {
-		return nil, fmt.Errorf("Method[%s] Annotation of type[%s] is not exist", name, td.rt.Name())
+		return nil, nil
 	}
 
 	return as, nil
@@ -391,7 +391,7 @@ func (r *AnnotationRegistry) GetAllMethodAnnotations(t reflect.Type) (map[string
 	}
 
 	if 0 == len(td.methodAnnotation) {
-		return nil, fmt.Errorf("MethodAnnotation of type[%s] is not exist", td.rt.Name())
+		return nil, nil
 	}
 
 	return td.methodAnnotation, nil