Model still appearing pink after applying image. So I just started learning how to texture paint and am following this tutorial (https://youtu.be/LcCQKuWPhXk)

I followed everything up to the point where you add the image texture node.
When I add it, the image remains pink instead of turning black. Is there anything that's normally expected when texture painting that I missed?
I found that you can unwrap the object in glsl texture mode then import the texture and attach it to a material by adding a material, applying it to the faces you want textured, selecting the material, going to the textures tab, new, material. you can then edit the uv map of the object how you like