Cannot add an object to a serialized field, of which type is the class named 'Object'

Unity Engine
1

I have defined the class ‘Object’ in my namespace.

And I have added a serialized field, of which type is the class ‘Object’.

In that case, I cannot attach a gameObject to the field in Unity editor.

namespace Custom.Space
{
    public class Object : MonoBehaviour
    {

    }

    public class B : MonoBehaviour
    {
        [SerializeField] private Object object;
    }
}

It seems that the name of the class, ‘Object’ cannot be used as a type of a SerializeField
If I have changed the name of class ‘Object’ with another name like’ BaseObject’, it works.

2

Try choosing another name. Object already means UnityEngine.Object.

Otherwise, disambiguate by providing the full name of the class, Custom.Space.Object

In general Object is a TERRIBLE name to use, especially in Unity… I recommend staying away from it or you will be constantly bumping this ambiguity.