typescript - All declarations of 'IBaseReplyMessage' must have identical type parameters -

i trying create generics interface inheritance in typescript , following error:

all declarations of 'ibasereplymessage' must have identical type parameters. 

my code is:

export interface ibasereplymessage {     id: number;     timestamp: number; }  export interface ibasereplymessage<t> extends ibasereplymessage {     (arg: t): t; }