title: Can't add a ListView in Flutter
body: <p>I am trying to write an App using Flutter, but every time I add a ListView, the following exception is thrown at runtime: <code>Vertical viewport was given unbounded height</code>. The ListView isn't nested in another scrollable widget, I get the error even if I use the ListView.builder example code from the documentation.
  Here is the code that is causing the problem:</p>
  
  <pre><code>import 'package:flutter/material.dart';
  import '../ui/app_drawer.dart';
  import '../ui/fgroup_button.dart';
  import '../ui/custom_icons.dart';
  import '../screens/cereales.dart';
  
  class DayDisplay extends StatefulWidget {
    final List&lt;String&gt; title;
    final List&lt;Map&lt;String, int&gt;&gt; values;
  
    DayDisplay(List&lt;String&gt; title, List&lt;Map&lt;String, int&gt;&gt; values):
        this.title = title, this.values = values;
    @override
    _DayDisplayState createState() =&gt; new _DayDisplayState();
  
  }
  
  class _DayDisplayState extends State&lt;DayDisplay&gt; {
    int index = 0;
    @override
    Widget build(BuildContext context) {
      return new Column(
        children: &lt;Widget&gt;[
      new Container(
        margin: EdgeInsetsDirectional.only(top:5.0) ,
      child: new Column(
        mainAxisSize: MainAxisSize.min,
        mainAxisAlignment: MainAxisAlignment.center,
        children: &lt;Widget&gt;[
          new Text(widget.title[index], textAlign: TextAlign.center, style: new TextStyle(fontWeight: FontWeight.bold, fontSize: 42.0),),
          new Text('Cereales: ${widget.values[index]['cereales']}', textAlign: TextAlign.center, style: new TextStyle(fontSize: 18.0)),
          new Text('Fruta: ${widget.values[index]['fruta']}', textAlign: TextAlign.center, style: new TextStyle(fontSize: 18.0)),
          new Text('Verdura: ${widget.values[index]['verdura']}', textAlign: TextAlign.center, style: new TextStyle(fontSize: 18.0)),
          new Text('Leguminosa: ${widget.values[index]['leguminosa']}', textAlign: TextAlign.center, style: new TextStyle(fontSize: 18.0)),
          new Text('Poa: ${widget.values[index]['poa']}', textAlign: TextAlign.center, style: new TextStyle(fontSize: 18.0)),
          new Text('Grasa: ${widget.values[index]['grasa']}', textAlign: TextAlign.center, style: new TextStyle(fontSize: 18.0)),
          new Text('Azucar: ${widget.values[index]['azucar']}', textAlign: TextAlign.center, style: new TextStyle(fontSize: 18.0)),
          new Text('Leche: ${widget.values[index]['leche']}', textAlign: TextAlign.center, style: new TextStyle(fontSize: 18.0)),
        ],
      ),
      ),
      new Container(
  
        margin: EdgeInsetsDirectional.only(top:8.0,),
  
        child: new Row(
  
            mainAxisAlignment: MainAxisAlignment.center,
  
            children: [ButtonTheme.bar(
  
              child: new ButtonBar(
  
                children: &lt;Widget&gt;[
  
                  new FlatButton(onPressed: () {
  
                    this.setState(() =&gt; index = 0);
  
                  }, child: new Text('Antes del ejercicio'), color: Colors.green),
  
                  new FlatButton(onPressed: () {
  
                    this.setState(() =&gt; index = 1);
  
                  }, child: new Text('Desayuno'), color: Colors.green,),
  
                  new FlatButton(onPressed: () {
  
                    this.setState(() =&gt; index = 2);
  
                  }, child: new Text('Colacion'), color: Colors.green,),
  
                ],
  
              ),
  
            ),
  
            ]
  
        ),
  
      ),
      new Container(
  
        margin: EdgeInsetsDirectional.only(top:4.0, bottom: 4.0),
  
        child: new Row(
  
            mainAxisAlignment: MainAxisAlignment.center,
  
            children: [ButtonTheme.bar(
  
              child: new ButtonBar(
  
                children: &lt;Widget&gt;[
  
                  new FlatButton(onPressed: () {
  
                    this.setState(() =&gt; index = 0);
  
                  }, child: new Text('Comida'), color: Colors.green),
  
                  new FlatButton(onPressed: () {
  
                    this.setState(() =&gt; index = 1);
  
                  }, child: new Text('Colacion'), color: Colors.green,),
  
                  new FlatButton(onPressed: () {
  
                    this.setState(() =&gt; index = 2);
  
                  }, child: new Text('Cena'), color: Colors.green,),
  
                ],
  
              ),
  
            ),
  
            ]
  
        ),
  
      ),
  
        ],
  
      );
  
    }
  
  }
  
  
  class HomePage extends StatefulWidget {
    const HomePage({ Key key}) : super(key: key);
    @override
    _HomePageState createState() =&gt; new _HomePageState();
  }
  
  class _HomePageState extends State&lt;HomePage&gt; {
    var dayValues = [
      {
        'cereales': 1,
        'fruta': 2,
        'verdura': 3,
        'leguminosa': 4,
        'poa': 5,
        'grasa': 6,
        'azucar': 7,
        'leche': 8
      },
      {
        'cereales': 2,
        'fruta': 4,
        'verdura': 6,
        'leguminosa': 8,
        'poa': 10,
        'grasa': 12,
        'azucar': 14,
        'leche': 16
      },
      {
        'cereales': 3,
        'fruta': 6,
        'verdura': 9,
        'leguminosa': 12,
        'poa': 5,
        'grasa': 6,
        'azucar': 7,
        'leche': 8
      },
    ];
  
    var dayTitles = [
      'Antes del Ejercicio',
      'Desayuno',
      'Colacion Mañana',
      'Comida',
      'Colacion Tarde',
      'Cena'
    ];
  
  
    @override
    Widget build(BuildContext context) {
      var dayDisplay = new DayDisplay(dayTitles, dayValues);
      return new Scaffold(
        appBar: new AppBar(
        title: new Text("Verde Limón"),
        backgroundColor: Colors.green
        ),
        drawer: new AppDrawer(),
        floatingActionButton: new FloatingActionButton(
          onPressed: null,
          tooltip: 'Añadir Puntos',
          child: new Icon(Icons.add)
        ),
        body: new Column(
          children: &lt;Widget&gt;[
            dayDisplay,
            Divider(),
            Container(
              child:  new ListView(
                children: &lt;Widget&gt;[
                  FGroupButton('Cereales', Colors.yellow[800], 12, CerealesPage(), Icon(Icons.fastfood, color:Colors.white)),
                  FGroupButton('Cereales', Colors.yellow[800], 12, CerealesPage(), Icon(Icons.fastfood, color:Colors.white)),
                  FGroupButton('Cereales', Colors.yellow[800], 12, CerealesPage(), Icon(Icons.fastfood, color:Colors.white)),
                  FGroupButton('Cereales', Colors.yellow[800], 12, CerealesPage(), Icon(Icons.fastfood, color:Colors.white)),
                  FGroupButton('Cereales', Colors.yellow[800], 12, CerealesPage(), Icon(Icons.fastfood, color:Colors.white)),
                  FGroupButton('Cereales', Colors.yellow[800], 12, CerealesPage(), Icon(Icons.fastfood, color:Colors.white)),
                  FGroupButton('Cereales', Colors.yellow[800], 12, CerealesPage(), Icon(Icons.fastfood, color:Colors.white)),
                  FGroupButton('Cereales', Colors.yellow[800], 12, CerealesPage(), Icon(Icons.fastfood, color:Colors.white)),
                  FGroupButton('Cereales', Colors.yellow[800], 12, CerealesPage(), Icon(Icons.fastfood, color:Colors.white)),
                  FGroupButton('Cereales', Colors.yellow[800], 12, CerealesPage(), Icon(Icons.fastfood, color:Colors.white)),
                ],
              ),
            )
          ],
        ),
      );
    }
  }
  </code></pre>
  
  <p>I don't know can be causing the problem, I added a ListView the same way in another app I was working on and it worked just fine. If you need any other code from the imports, ask for it and I will post it.
  Here is the full error log:</p>
  
  <pre><code>I/flutter ( 4625): ══╡ EXCEPTION CAUGHT BY RENDERING LIBRARY ╞═════════════════════════════════════════════════════════
  I/flutter ( 4625): The following assertion was thrown during performResize():
  I/flutter ( 4625): Vertical viewport was given unbounded height.
  I/flutter ( 4625): Viewports expand in the scrolling direction to fill their container.In this case, a vertical
  I/flutter ( 4625): viewport was given an unlimited amount of vertical space in which to expand. This situation
  I/flutter ( 4625): typically happens when a scrollable widget is nested inside another scrollable widget.
  I/flutter ( 4625): If this widget is always nested in a scrollable widget there is no need to use a viewport because
  I/flutter ( 4625): there will always be enough vertical space for the children. In this case, consider using a Column
  I/flutter ( 4625): instead. Otherwise, consider using the "shrinkWrap" property (or a ShrinkWrappingViewport) to size
  I/flutter ( 4625): the height of the viewport to the sum of the heights of its children.
  I/flutter ( 4625): 
  I/flutter ( 4625): When the exception was thrown, this was the stack:
  I/flutter ( 4625): #0      RenderViewport.performResize.&lt;anonymous closure&gt; (package:flutter/src/rendering/viewport.dart:944:15)
  I/flutter ( 4625): #1      RenderViewport.performResize (package:flutter/src/rendering/viewport.dart:997:6)
  I/flutter ( 4625): #2      RenderObject.layout (package:flutter/src/rendering/object.dart:1555:9)
  I/flutter ( 4625): #3      _RenderProxyBox&amp;RenderBox&amp;RenderObjectWithChildMixin&amp;RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:109:13)
  I/flutter ( 4625): #4      RenderObject.layout (package:flutter/src/rendering/object.dart:1570:7)
  I/flutter ( 4625): #5      _RenderProxyBox&amp;RenderBox&amp;RenderObjectWithChildMixin&amp;RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:109:13)
  I/flutter ( 4625): #6      RenderObject.layout (package:flutter/src/rendering/object.dart:1570:7)
  I/flutter ( 4625): #7      _RenderProxyBox&amp;RenderBox&amp;RenderObjectWithChildMixin&amp;RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:109:13)
  I/flutter ( 4625): #8      RenderObject.layout (package:flutter/src/rendering/object.dart:1570:7)
  I/flutter ( 4625): #9      _RenderProxyBox&amp;RenderBox&amp;RenderObjectWithChildMixin&amp;RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:109:13)
  I/flutter ( 4625): #10     RenderObject.layout (package:flutter/src/rendering/object.dart:1570:7)
  I/flutter ( 4625): #11     _RenderProxyBox&amp;RenderBox&amp;RenderObjectWithChildMixin&amp;RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:109:13)
  I/flutter ( 4625): #12     RenderObject.layout (package:flutter/src/rendering/object.dart:1570:7)
  I/flutter ( 4625): #13     _RenderProxyBox&amp;RenderBox&amp;RenderObjectWithChildMixin&amp;RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:109:13)
  I/flutter ( 4625): #14     RenderObject.layout (package:flutter/src/rendering/object.dart:1570:7)
  I/flutter ( 4625): #15     _RenderProxyBox&amp;RenderBox&amp;RenderObjectWithChildMixin&amp;RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:109:13)
  I/flutter ( 4625): #16     RenderObject.layout (package:flutter/src/rendering/object.dart:1570:7)
  I/flutter ( 4625): #17     _RenderProxyBox&amp;RenderBox&amp;RenderObjectWithChildMixin&amp;RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:109:13)
  I/flutter ( 4625): #18     RenderObject.layout (package:flutter/src/rendering/object.dart:1570:7)
  I/flutter ( 4625): #19     RenderFlex.performLayout (package:flutter/src/rendering/flex.dart:738:15)
  I/flutter ( 4625): #20     RenderObject.layout (package:flutter/src/rendering/object.dart:1570:7)
  I/flutter ( 4625): #21     MultiChildLayoutDelegate.layoutChild (package:flutter/src/rendering/custom_layout.dart:141:11)
  I/flutter ( 4625): #22     _ScaffoldLayout.performLayout (package:flutter/src/material/scaffold.dart:399:7)
  I/flutter ( 4625): #23     MultiChildLayoutDelegate._callPerformLayout (package:flutter/src/rendering/custom_layout.dart:211:7)
  I/flutter ( 4625): #24     RenderCustomMultiChildLayoutBox.performLayout (package:flutter/src/rendering/custom_layout.dart:355:14)
  I/flutter ( 4625): #25     RenderObject.layout (package:flutter/src/rendering/object.dart:1570:7)
  I/flutter ( 4625): #26     _RenderProxyBox&amp;RenderBox&amp;RenderObjectWithChildMixin&amp;RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:109:13)
  I/flutter ( 4625): #27     RenderObject.layout (package:flutter/src/rendering/object.dart:1570:7)
  I/flutter ( 4625): #28     _RenderProxyBox&amp;RenderBox&amp;RenderObjectWithChildMixin&amp;RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:109:13)
  I/flutter ( 4625): #29     _RenderCustomClip.performLayout (package:flutter/src/rendering/proxy_box.dart:1143:11)
  I/flutter ( 4625): #30     RenderObject.layout (package:flutter/src/rendering/object.dart:1570:7)
  I/flutter ( 4625): #31     _RenderProxyBox&amp;RenderBox&amp;RenderObjectWithChildMixin&amp;RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:109:13)
  I/flutter ( 4625): #32     RenderObject.layout (package:flutter/src/rendering/object.dart:1570:7)
  I/flutter ( 4625): #33     _RenderProxyBox&amp;RenderBox&amp;RenderObjectWithChildMixin&amp;RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:109:13)
  I/flutter ( 4625): #34     RenderObject.layout (package:flutter/src/rendering/object.dart:1570:7)
  I/flutter ( 4625): #35     _RenderProxyBox&amp;RenderBox&amp;RenderObjectWithChildMixin&amp;RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:109:13)
  I/flutter ( 4625): #36     RenderObject.layout (package:flutter/src/rendering/object.dart:1570:7)
  I/flutter ( 4625): #37     _RenderProxyBox&amp;RenderBox&amp;RenderObjectWithChildMixin&amp;RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:109:13)
  I/flutter ( 4625): #38     RenderObject.layout (package:flutter/src/rendering/object.dart:1570:7)
  I/flutter ( 4625): #39     _RenderProxyBox&amp;RenderBox&amp;RenderObjectWithChildMixin&amp;RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:109:13)
  I/flutter ( 4625): #40     RenderObject.layout (package:flutter/src/rendering/object.dart:1570:7)
  I/flutter ( 4625): #41     _RenderProxyBox&amp;RenderBox&amp;RenderObjectWithChildMixin&amp;RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:109:13)
  I/flutter ( 4625): #42     RenderObject.layout (package:flutter/src/rendering/object.dart:1570:7)
  I/flutter ( 4625): #43     _RenderProxyBox&amp;RenderBox&amp;RenderObjectWithChildMixin&amp;RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:109:13)
  I/flutter ( 4625): #44     RenderObject.layout (package:flutter/src/rendering/object.dart:1570:7)
  I/flutter ( 4625): #45     _RenderProxyBox&amp;RenderBox&amp;RenderObjectWithChildMixin&amp;RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:109:13)
  I/flutter ( 4625): #46     RenderOffstage.performLayout (package:flutter/src/rendering/proxy_box.dart:2809:13)
  I/flutter ( 4625): #47     RenderObject.layout (package:flutter/src/rendering/object.dart:1570:7)
  I/flutter ( 4625): #48     RenderStack.performLayout (package:flutter/src/rendering/stack.dart:520:15)
  I/flutter ( 4625): #49     RenderObject.layout (package:flutter/src/rendering/object.dart:1570:7)
  I/flutter ( 4625): #50     __RenderTheatre&amp;RenderBox&amp;RenderObjectWithChildMixin&amp;RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:109:13)
  I/flutter ( 4625): #51     RenderObject.layout (package:flutter/src/rendering/object.dart:1570:7)
  I/flutter ( 4625): #52     _RenderProxyBox&amp;RenderBox&amp;RenderObjectWithChildMixin&amp;RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:109:13)
  I/flutter ( 4625): #53     RenderObject.layout (package:flutter/src/rendering/object.dart:1570:7)
  I/flutter ( 4625): #54     _RenderProxyBox&amp;RenderBox&amp;RenderObjectWithChildMixin&amp;RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:109:13)
  I/flutter ( 4625): #55     RenderObject.layout (package:flutter/src/rendering/object.dart:1570:7)
  I/flutter ( 4625): #56     _RenderProxyBox&amp;RenderBox&amp;RenderObjectWithChildMixin&amp;RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:109:13)
  I/flutter ( 4625): #57     RenderObject.layout (package:flutter/src/rendering/object.dart:1570:7)
  I/flutter ( 4625): #58     _RenderProxyBox&amp;RenderBox&amp;RenderObjectWithChildMixin&amp;RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:109:13)
  I/flutter ( 4625): #59     RenderObject.layout (package:flutter/src/rendering/object.dart:1570:7)
  I/flutter ( 4625): #60     _RenderProxyBox&amp;RenderBox&amp;RenderObjectWithChildMixin&amp;RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:109:13)
  I/flutter ( 4625): #61     RenderObject.layout (package:flutter/src/rendering/object.dart:1570:7)
  I/flutter ( 4625): #62     RenderView.performLayout (package:flutter/src/rendering/view.dart:125:13)
  I/flutter ( 4625): #63     RenderObject._layoutWithoutResize (package:flutter/src/rendering/object.dart:1445:7)
  I/flutter ( 4625): #64     PipelineOwner.flushLayout (package:flutter/src/rendering/object.dart:709:18)
  I/flutter ( 4625): #65     _WidgetsFlutterBinding&amp;BindingBase&amp;GestureBinding&amp;ServicesBinding&amp;SchedulerBinding&amp;PaintingBinding&amp;RendererBinding.drawFrame (package:flutter/src/rendering/binding.dart:270:19)
  I/flutter ( 4625): #66     _WidgetsFlutterBinding&amp;BindingBase&amp;GestureBinding&amp;ServicesBinding&amp;SchedulerBinding&amp;PaintingBinding&amp;RendererBinding&amp;WidgetsBinding.drawFrame (package:flutter/src/widgets/binding.dart:627:13)
  I/flutter ( 4625): #67     _WidgetsFlutterBinding&amp;BindingBase&amp;GestureBinding&amp;ServicesBinding&amp;SchedulerBinding&amp;PaintingBinding&amp;RendererBinding._handlePersistentFrameCallback (package:flutter/src/rendering/binding.dart:208:5)
  I/flutter ( 4625): #68     _WidgetsFlutterBinding&amp;BindingBase&amp;GestureBinding&amp;ServicesBinding&amp;SchedulerBinding._invokeFrameCallback (package:flutter/src/scheduler/binding.dart:990:15)
  I/flutter ( 4625): #69     _WidgetsFlutterBinding&amp;BindingBase&amp;GestureBinding&amp;ServicesBinding&amp;SchedulerBinding.handleDrawFrame (package:flutter/src/scheduler/binding.dart:930:9)
  I/flutter ( 4625): #70     _WidgetsFlutterBinding&amp;BindingBase&amp;GestureBinding&amp;ServicesBinding&amp;SchedulerBinding.scheduleWarmUpFrame.&lt;anonymous closure&gt; (package:flutter/src/scheduler/binding.dart:751:7)
  I/flutter ( 4625): #72     _Timer._runTimers (dart:isolate/runtime/libtimer_impl.dart:382:19)
  I/flutter ( 4625): #73     _Timer._handleMessage (dart:isolate/runtime/libtimer_impl.dart:416:5)
  I/flutter ( 4625): #74     _RawReceivePortImpl._handleMessage (dart:isolate/runtime/libisolate_patch.dart:165:12)
  I/flutter ( 4625): (elided one frame from package dart:async)
  I/flutter ( 4625): 
  I/flutter ( 4625): The following RenderObject was being processed when the exception was fired:
  I/flutter ( 4625):   RenderViewport#f0f8d NEEDS-LAYOUT NEEDS-PAINT
  I/flutter ( 4625):   creator: Viewport ← _ScrollableScope ← IgnorePointer-[GlobalKey#74b2b] ← Semantics ← Listener ←
  I/flutter ( 4625):   _GestureSemantics ← RawGestureDetector-[LabeledGlobalKey&lt;RawGestureDetectorState&gt;#a26e1] ←
  I/flutter ( 4625):   _ExcludableScrollSemantics-[GlobalKey#d886a] ← RepaintBoundary ← CustomPaint ← RepaintBoundary ←
  I/flutter ( 4625):   NotificationListener&lt;ScrollNotification&gt; ← ⋯
  I/flutter ( 4625):   parentData: &lt;none&gt; (can use size)
  I/flutter ( 4625):   constraints: BoxConstraints(0.0&lt;=w&lt;=411.4, 0.0&lt;=h&lt;=Infinity)
  I/flutter ( 4625):   size: MISSING
  I/flutter ( 4625):   axisDirection: down
  I/flutter ( 4625):   crossAxisDirection: right
  I/flutter ( 4625):   offset: ScrollPositionWithSingleContext#96d55(offset: 0.0, range: null..null, viewport: null,
  I/flutter ( 4625):   ScrollableState, AlwaysScrollableScrollPhysics -&gt; ClampingScrollPhysics, IdleScrollActivity#988d8,
  I/flutter ( 4625):   ScrollDirection.idle)
  I/flutter ( 4625):   anchor: 0.0
  I/flutter ( 4625): This RenderObject had the following descendants (showing up to depth 5):
  I/flutter ( 4625):   RenderSliverPadding#4f8e1 NEEDS-LAYOUT NEEDS-PAINT
  I/flutter ( 4625):     RenderSliverList#af3ad NEEDS-LAYOUT NEEDS-PAINT
  I/flutter ( 4625):       RenderRepaintBoundary#630d9 NEEDS-LAYOUT NEEDS-PAINT
  I/flutter ( 4625):         RenderSemanticsAnnotations#53c3c NEEDS-LAYOUT NEEDS-PAINT
  I/flutter ( 4625):           RenderPadding#086f3 NEEDS-LAYOUT NEEDS-PAINT
  I/flutter ( 4625): ════════════════════════════════════════════════════════════════════════════════════════════════════
  I/flutter ( 4625): Another exception was thrown: RenderBox was not laid out: RenderViewport#f0f8d NEEDS-LAYOUT NEEDS-PAINT
  I/flutter ( 4625): Another exception was thrown: RenderBox was not laid out: RenderViewport#f0f8d NEEDS-PAINT
  I/flutter ( 4625): Another exception was thrown: RenderBox was not laid out: RenderIgnorePointer#f38ea relayoutBoundary=up9 NEEDS-PAINT
  I/flutter ( 4625): Another exception was thrown: RenderBox was not laid out: RenderSemanticsAnnotations#7561c relayoutBoundary=up8 NEEDS-PAINT
  I/flutter ( 4625): Another exception was thrown: RenderBox was not laid out: RenderPointerListener#76fd2 relayoutBoundary=up7 NEEDS-PAINT
  I/flutter ( 4625): Another exception was thrown: RenderBox was not laid out: RenderSemanticsGestureHandler#29de7 relayoutBoundary=up6 NEEDS-PAINT
  I/flutter ( 4625): Another exception was thrown: RenderBox was not laid out: _RenderExcludableScrollSemantics#087de relayoutBoundary=up5 NEEDS-PAINT
  I/flutter ( 4625): Another exception was thrown: RenderBox was not laid out: RenderRepaintBoundary#d7d18 relayoutBoundary=up4 NEEDS-PAINT
  I/flutter ( 4625): Another exception was thrown: RenderBox was not laid out: RenderCustomPaint#dc8bc relayoutBoundary=up3 NEEDS-PAINT
  I/flutter ( 4625): Another exception was thrown: RenderBox was not laid out: RenderRepaintBoundary#037d4 relayoutBoundary=up2 NEEDS-PAINT
  Reloaded 3 of 394 libraries in 6,616ms.
  I/flutter ( 4625): Another exception was thrown: RenderBox was not laid out: RenderRepaintBoundary#037d4 relayoutBoundary=up2 NEEDS-PAINT
  </code></pre>
  
  <p>Thanks in advance for the help.</p>