找不到函数作为类 Godot 的一部分-解网

问：

我刚刚开始学习 Godot，并且已经从 Unity 中了解了相当多的 C#。我正在尝试设置一个 3D 角色装备。该函数应该存在，因为文档都说它应该存在，但是当我编译此代码时：

using Godot;
using System;

public partial class world_control : Node
{
    SceneTree tree;
    Node3D camera;
    Node3D head;
    
    // Called when the node enters the scene tree for the first time.
    public override void _Ready()
    {
        tree = GetTree();
        camera = tree.get_current_scene().find_child("camera", false, false);
        head = tree.get_current_scene().find_child("head", true, false);
    }

    // Called every frame. 'delta' is the elapsed time since the previous frame.
    public override void _Process(double delta)
    {
        camera.set_global_position(head.get_global_position());
        camera.set_global_rotation(head.get_global_rotation());
    }
}

它给了我这些错误：

/***/Godot/Hand_Cannon/world_control.cs(14,17): 'SceneTree' does not contain a definition for 'get_current_scene' and no accessible extension method 'get_current_scene' accepting a first argument of type 'SceneTree' could be found (are you missing a using directive or an assembly reference?)

/***/Godot/Hand_Cannon/world_control.cs(21,35): 'Node3D' does not contain a definition for 'get_global_position' and no accessible extension method 'get_global_position' accepting a first argument of type 'Node3D' could be found (are you missing a using directive or an assembly reference?)

（我遗漏了一些错误，但基本上所有函数都会导致此 excact 错误）

额外信息：使用 C# 的 Godot 4.1 .NET 8（在发布当天安装）.NET 8 （Installed on day of posting） Mac OSX 13.5.1 操作系统

如果需要，我可以而且非常愿意提供更多信息！

这是一个我根本不知道该尝试什么的问题。我今天对 Godot 很陌生.到目前为止没有任何效果，事实上我什至不知道这些值具有 getter 函数！

C# 戈多 4

// Called when the node enters the scene tree for the first time.
public override void _Ready()
{
    SceneTree tree = GetTree();
    camera = (Node3D)tree.CurrentScene.GetNode("camera", false, false);
    head = (Node3D)tree.CurrentScene.GetNode("head", true, false);
}

// Called every frame. 'delta' is the elapsed time since the previous frame.
public override void _Process(double delta)
{
    camera.Position = head.Position;
    camera.Rotation = head.Rotation;
}

找不到函数作为类 Godot 的一部分

Cannot find functions as part of classes Godot

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