Can't craft some items

[frase222]

I have required items, skills, but I haven't button to craft item.
For example: I have bone material, branch, skill "Primitive Tools", but I can't craft bone saw because I have no button.

Only one my character have this problem. Please check and solve this problem.

[fanit937]

Q: Why can't I craft a certain item if I have the necessary skills?
A: You need to discover the materials first. This is true for all items and constructions. Items must be discovered in different manners, for some you must be the first person to pick the item up, such as woodblocks, straw, plant fibers, and metal bars. For other items you must be the one to harvest the material, such as meat, bones, crops, and foragables. If the item was in the inventory of someone else before you then you did not count as discovering it. Items bought from a barter stand, even your own, count as being discovered.

[frase222]

[i]If the item was in the inventory of someone else before you then you did not count as discovering it.

I don't now about this. Thank you, fanit937.