Materialien rosa in der Einheit

Hey so if you are using URP and some materials are pink
(basially pink materials mean materials error)then click 'Edit' on
the top from there select render pipeline and tap convert project maetrials 
to universal render pipeline and hopefully It might fix your issue
but if it didn't then there might be missing prefabs or meta files
Hopefully it will fix it
Reimporting or re-adding is always an option.
  For a more detailed explaination and fix 
  check this out: 
// https://www.youtube.com/watch?v=nB0r0c-SIVg
Thanks for reading 
Dentetsu