Flutter 右侧的RenderFlex溢出了27个像素

我在这个错误之前也遇到了同样的错误，并使用扩展和SingleChildScrollView小部件解决了这个问题。但这一次它不起作用了。我的代码如下

  Widget build(BuildContext context) {

    return Container(
      child:SizedBox(
        height: height,
        child: SlideButton(
          isDraggable: true,
          backgroundColor: color.withOpacity(0.9),
          backgroundChild: Center(
            child: Container(
              margin: EdgeInsets.fromLTRB(sizedboxwidth, 0, 0, 0),
              child: CupertinoButton(
                onPressed: (){},
                child: Row(
                  children: [
                    CircleAvatar(
                      child: Image.asset("assets/world_2.png"),

                    ),
                    SizedBox(width:10),
                    Text(user.getUserName(),
                      style: TextStyle(
                          color: textcolor,
                          fontSize: 20,
                      ),
                    ),
                  ],
                ),
              ),
            ),
          ),
          slidingBarColor: backgroundcolor.withOpacity(0.4),
          //initialSliderPercentage: initialSliderPercent,
          
          slidingChild: Row(
            mainAxisAlignment: MainAxisAlignment.end,
            children: [
              Expanded(
                child: SingleChildScrollView(
                  child: Row(
                    children: [
                      Opacity(
                          child: Icon(Icons.arrow_forward_ios),
                          opacity: 1
                      ),
                      Opacity(
                        child: Icon(Icons.message),
                          opacity: 1
                      ),
                    ],
                  ),
                ),
              ),
            ],
          ),
          slideDirection: SlideDirection.RIGHT,

        ),
      ),
    );


  }
}

错误如下所示

The following assertion was thrown during layout:
A RenderFlex overflowed by 39 pixels on the right.

The relevant error-causing widget was: 
Row file:///C:/src/flutter_project/xcx/lib/components/cards/specified_user_card.dart:74:26
The overflowing RenderFlex has an orientation of Axis.horizontal.
The edge of the RenderFlex that is overflowing has been marked in the rendering with a yellow and 
black striped pattern. This is usually caused by the contents being too big for the RenderFlex.

Consider applying a flex factor (e.g. using an Expanded widget) to force the children of the       
RenderFlex to fit within the available space instead of being sized to their natural size.
This is considered an error condition because it indicates that there is content that cannot be seen. 
If the content is legitimately bigger than the available space, consider clipping it with a ClipRect 
widget before putting it in the flex, or using a scrollable container rather than a Flex, like a 
ListView.

我也尝试过ClipRect小部件，但它对我不起作用。分配了slidingChild属性的小部件向左移动时出现问题