But when I press T to place the sample texture, it was placed but without the texture although I was selecting this texture in the content browser. Now when I follow the tutorial the connect “multiply” to “emissive color” I get error in the texture sample saying: Error [SM5] (Node TextureSample) TextureSample> Missing input texture
Sounds like you are missing texture. Did you have a texture selected when you pressed the “T” key in the material editor? If not then all you need to do is find the texture that you want to use and make sure to feed that into the texture sampler.