apareceu esses erros no Unity: Assets\Scripts\controlainimigo.cs(48,9): error CS0120: An object reference is required for the non-static field, method, or property 'Component.GetComponent()' e Assets\Scripts\controlainimigo.cs(49,9): error CS0120: An object reference is required for the non-static field, method, or property 'Component.GetComponent()'. Não estou conseguindo resolver.
link do arquivo: https://www.dropbox.com/s/ufn1oqs4baz53zs/apocalipse-zumbi-alura.rar?dl=0