Unity 2018.1 'UnityEngine.Shader' has no constructors defined

Hey guys, I’ve recently downloaded Unity 2018.1 and one of my plugins just threw this error… Any ideas? Thanks

error CS0143: The class  'UnityEngine.Shader' has no constructors defined

The Shader class contains all the necessary static methods and property definitions, so it is not necessary to instantiate the class. Comment out any call to the class and call the static methods directly.
For example

// Shader shad = new Shader(); // comment this line out

Shader shad = Shader.Find(“Standard”);

The constructor was intentionally removed as it was never implemented properly.