How to solve attributes of test class are incomplete error in SAP ABAP

CLASS ltc_test_dynamic_method DEFINITION FOR TESTING.
PUBLIC SECTION.
PROTECTED SECTION.
PRIVATE SECTION.
METHODS test FOR TESTING.
ENOCLASS.

solution:

CLASS ltc_test_dynamic_method DEFINITION FOR TESTING
DURATION SHORT RISK LEVEL HARMLESS.
PUBLIC SECTION.
PROTECTED SECTION.
PRIVATE SECTION.
METHODS test FOR TESTING.
ENDCLASS.