i need help

i'm playing KOTOR 2 and i chose dantooine as the first level after telos, so i need to find vrook using the light path and when i ask Boa-dur if he can make me a lightsaber he says i only need a lens, but i have three lens which i made, i need help please

The lenses you made are lenses for upgrading an already functional lightsaber. You need to complete quests to find the lens you need for create a lightsaber.