错误CS1525:无效的表达式术语')'

我知道此错误已解决,但我无法解决此问题。非常感谢您的帮助。

private void Update()
{
    if (!_Awake)
    {
        Awake();
    }

    if () <<<error here
    {
        OVROverlay.OverlayShape shape = currentOverlayShape;
        Vector3 position = _CameraRoot ? (_Transform.position - _CameraRoot.position) : _Transform.position;
        Quaternion rotation = _Transform.rotation;
        Vector3 scale = _Transform.lossyScale;
        Rect rectLeft = _Overlay.overrideTextureRectMatrix ? _Overlay.destRectLeft : new Rect(0, 0, 1, 1);
        Rect rectRight = _Overlay.overrideTextureRectMatrix ? _Overlay.destRectRight : new Rect(0, 0, 1, 1);
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