lua报错nil nil error! c# exception:XLua.LuaException: c# exception:UnityEngine.MissingComponentException: There is no 'MeshRenderer' attached to the "ch_architect" game object, but a script is trying to access it. You probably need to add a MeshRenderer to the game object "ch_architect". Or your script needs to check if the component is attached before using it. at (wrapper managed-to-native) UnityEngine.Renderer.set_sortingLayerName(UnityEngine.Renderer,string) at XLua.CSObjectWrap.UnityEngineRendererWrap._s_set_sortingLayerName (System.IntPtr L) [0x0001c] in D:\DreamLandProjects\DreamLandc301\Assets\XLua\Gen\UnityEngine_RendererWrap.cs:1040 stack traceback: [C]: in ? [C]: in ? [C]: in metamethod '__newindex' Common/UI/UIASpine:136: in function 'Common/UI/UIASpine.SetSort' UI/Hero/UITeamItems:299: in upvalue 'CB' Common/Unit/SingleChild:179: in upvalue 'CB' Common/Unit/SingleChild:102: in upvalue 'CB' Common/UI/UIItem:45: in upvalue 'CB' Common/Unit/Unit:100: in upvalue 'CB' Common/UI/UIASpine:26: in function <Common/UI/UIASpine:22> ... UI/Hero/UITeamItems:296: in field 'fReset' Common/UI/UIUnit:53: in function 'Common/UI/UIUnit.Reset' UI/Team/UITeamMain:326: in function 'UI/Team/UITeamMain.UpdateSlots' UI/Team/UITeamMain:311: in function 'UI/Team/UITeamMain.UpdateTeamBtns' UI/Team/UITeamMain:49: in function 'UI/Team/UITeamMain.OnEnter' [C]: in function 'xpcall' InitLib:63: in function 'xpcall_0' UI/Common/UIManager:141: in function 'UI/Common/UIManager.EnterPanel' UI/Common/UIManager:114: in function 'UI/Common/UIManager.OpenPanel' UI/Common/UIManager:189: in upvalue 'LoadedCB' UI/Common/UIManager:610: in function <UI/Common/UIManager:574>

这个错误信息分为两部分，第一部分是来自Lua的报错，提示为 `nil nil error!`；第二部分是来自C#的异常信息，提示为 `UnityEngine.MissingComponentException: There is no 'MeshRenderer' attached to the "ch_architect" game object, but a script is trying to access it. You probably need to add a MeshRenderer to the game object "ch_architect". Or your script needs to check if the component is attached before using it.` 这个异常信息告诉我们在 `ch_architect` 游戏物体上找不到 `MeshRenderer` 组件，但是脚本却在尝试访问它。你可能需要在该游戏物体上添加一个 `MeshRenderer` 组件，或者在使用它之前检查它是否已经存在。

相关问题

[2023-06-12 14:16:11.2948][77][Error][XLog]:XLuaEngine Invoke error, path: XDlcHotReload.Reload, exception: XLua.LuaException: Common/XLog:181: attempt to call a nil value (field 'Error') stack traceback: Common/XLog:181: in field 'Error'

这个错误提示表明在调用 `XDlcHotReload.Reload` 函数时出现了异常，异常信息是 `attempt to call a nil value (field 'Error')`，也就是在调用 `Error` 函数时出错了。

这个错误一般是由于 Lua 中没有定义 `Error` 函数导致的，需要检查一下 `Error` 函数是否被正确地导入到 Lua 中。

另外，如果 `Error` 函数是在 C# 中定义的，也需要确保在 Lua 中正确地导入了对应的 C# 类和方法。

如果还无法解决问题，请提供更多的上下文信息，例如完整的代码以及更详细的错误堆栈信息。