Need help with inst.components

[dustsuccer]

How can i use inst.components.builder:UnlockRecipe("prefab")  and inst.components.reader:Say("string") inside inst.components.book.onread function? I want to create a book that would unlock recipe after reading but as a result i always get error:

[string "../mods/test/scripts/prefabs/book_science.l..."]:85: attempt to index field 'builder' (a nil value)

P.S. Sorry for my english

[Ultroman]

We need to see your code in order to help you. Zip your mod, and drag 'n' drop it on a reply.

[CarlZalph]

inst.components.book.onread = function(owner, reader)
    if reader.components.builder
    then
        reader.components.builder:UnlockRecipe("prefab")
    end
    if reader.components.talker
    then
        reader.components.talker:Say("Bob")
    end
    return true -- Or whatever checks you want to make it not do anything.
end

I think you're trying to use the book component's inst as a reference to the builder/talker component instead of the reader.