Line Renderer only producing black lines.

I’m currently working through the Survival Shooter tutorials provided on the Unity website and am having difficulty rendering the LineRendererMaterial correctly on the line renderer component.

It just shows up black rather than the desired yellowy colour. I managed to achieve the correct colour my changing the shader to Particles/Additive but I would prefer to use the purpose shader. Several other shaders such as the Text Shader work too.

Sorry for not being too specific and thank you in advance for any help which you can provide.

You can set the colour of the additive shader to the yellow to make it work appropriately.