Failed to get socket connection from UnityShaderCompiler.exe shader compiler
<p>In Unity each time I try to change/set a shader to a material (in code or in the editor) Unity hangs for a while and logs "Failed to get socket connection from UnityShaderCompiler.exe shader compiler!" in the console.</p>

<p>I killed Unity, rebooted the PC, deactivated the firewall, nothing seems to change anything. I googled the error message but no luck. Any idea?</p>