Cannot compile to JS

[Aszusz]

Cannot compile to JS because:

: C:/HaxeToolkit/haxe/lib/reaxe/1,0,4/src/reaxe/XmlRenderer.hx:5: characters 8-19 : You cannot access the sys package while targeting js (for sys.io.File)
: src/Reaxe.hx:7: characters 8-25 :     referenced here
: bin/html5/haxe/ApplicationMain.hx:268: characters 48-53 :     referenced here

Is it possible you use something else instead of sys.io.File for JS target?