window.d (113,2) Error undefined identifier WindowHandle

[devosalain]

DSFML does not work. The error given is,
dub add dsfml
Adding dependency dsfml ~>2.1.1
x: /home/x/D/sfml/jebbs/test >dub
Fetching dsfml 2.1.1 (getting selected version)...
Performing "debug" build using /usr/local/bin/ldc2 for x86_64.
dsfml:system 2.1.1: building configuration "library"...
dsfml:audio 2.1.1: building configuration "library"...
dsfml:window 2.1.1: building configuration "library"...
/home/x/.dub/packages/dsfml-2.1.1/dsfml/src/dsfml/window/window.d(113,2): Error: undefined identifier WindowHandle
O.S. : FreeBSD 13.0-RELEASE
Installed libraries :
sfml-2.5.1_2
sfml1-1.6_5