some body please tell why this code snippet is giving a syntax error
syntax error:interface component "INTERF~A" doesnot exist
interface interf.
data a type i.
aliases a1 for interf~a.
endinterface.
class abc definition.
public section.
interfaces interf.
private section.
methods use.
endclass.
class abc implementation.
method use.
endmethod.
endclass.
data obj type ref to abc.
start-of-selection.
create object obj.