Upgrading Unity to version 5.4 onwards, view editor becomes completely pink!

I have started using Unity 5.3.0 for a few months now and have never had a problem, but a few weeks ago I tried to upgrade to version 5.4.3 (I uninstalled version 5.3.0 before), got the bug below, the Default-Shader and all objects use this become completely pink, tried to clean GI Cache and Other things in topics in this forum of people with the “pink problem”, nothing worked, I uninstalled version 5.4.3 and returned to 5.3.0, I currently tried to upgrade to 5.5.0, in the hope that the bug would be fixed, but The same bug happened again, really do not want to stick with the outdated version of Unity, please help me!

*An error appears on the console as you can see below, any extra information you need about my hardware or software ask me in the comments.

Hey @HermesonBF ,

Is this happening in a completely new project too? I would expect that you have a custom shader or a cginc file that overrides one of Unity’s default ones and that causes the issue.

Cheers!