fontspec error: "font-not-found" The font "B Yas" cannot be found. For immediate help type H . ...\Persianfont[Script=Arabic,Scale=1]{B Yas}
با وجود اینکه فونتو نصب کردم بازم ارور میده
Cannot use \XeTeXOTlanguagetag with nullfont; not an OpenType Layout font. \settextfont[Scale=1]{B Yas}
