Yardım is not an entity type hatası

[jmbx]

Oyun Sürümü

1.8.9

'a new book' is not an entity type
'a new text component with "%nl%Adınız: &7%player%"' is not an entity type
'book {_kitap}' is not an entity type

command /kitap:
    trigger:
        set {_kitap} to a new book
        set {_satir} to a new text component with "%nl%Adınız: &7%player%"
        add text component {_satir} to book {_kitap}
        open book {_kitap} to player