【Unity】”does not have a valid GUID and its corresponding Asset file will be ignored. If this file is not malformed” エラー

The .meta file Assets/Resources/hogehoge.meta does not have a valid GUID and its corresponding Asset file will be ignored. If this file is not malformed, please add a GUID, or delete the .meta file and it will be recreated correctly
UnityEditor.EditorApplication:Internal_CallGlobalEventHandler()