Build Error : no suitable method found to override. But this error didn't occur when programming

Unity Engine
,
1

My Unity version is 6000.0.0f1c1.

I’m using my custom render pipeline and global settings, but error occurs in the override function “Initialize” when building. The definition in the base class is:

public class RenderPipelineGlobalSettings : ScriptableObject, ISerializationCallbackReceiver
{
    ......
    public virtual void Initialize(RenderPipelineGlobalSettings source = null);
    ......
}

And my override version is:

public class CustomRenderPipelineGlobalSettings : RenderPipelineGlobalSettings
{
      ......
      public override void Initialize(RenderPipelineGlobalSettings source = null)
      ......
}

Clearly they’re the same. But when I build my game on Windows, Intel 64-bit, error occurs:

error CS0115: ‘CustomRenderPipelineGlobalSettings.Initialize(RenderPipelineGlobalSettings)’: no suitable method found to override.

Did anyone happen to meet this problem? I totally don’t know what to do with it.
Here’s more code about the class that arise this problem.

[SupportedOnRenderPipeline(typeof(CustomPipelineAsset))]
public class CustomRenderPipelineGlobalSettings : RenderPipelineGlobalSettings
{
    [SerializeField]
    private static CustomRenderPipelineGlobalSettings cachedInstance = null;
    public static CustomRenderPipelineGlobalSettings instance
    {
        get
        {
            if (cachedInstance == null)
                cachedInstance = GraphicsSettings.GetSettingsForRenderPipeline<CustomRenderPipeline>() as CustomRenderPipelineGlobalSettings;
            return cachedInstance;
        }
    }

    [SerializeReference] 
    private List<IRenderPipelineGraphicsSettings> m_SettingsList = new();
    protected override List<IRenderPipelineGraphicsSettings> settingsList => m_SettingsList;

    public override void Initialize(RenderPipelineGlobalSettings source = null)
    {
        Add(new CustomRenderPipelineRuntimeShaders());
    }