Cheers guys, after updating to the newest version my old textures I created with a non-pbr-spec-gloss shader turned pink. There is an error message when opening my old files (see image 2) Is there any way to get rid of this problem besides redoing or am I just missing something here?
There was a typo in the previous version but has been fixed in 2018.1, make sure to select the shader again in the Shader Settigns window, your project likely use an older version of the shader.