mouse_tracker.dart error and complete freeze

[DirtyNative]

I am using the graph view inside one of my views and struggle getting it to work without freezing. I get a massive load of errors while the mouse is over the graph:

════════ Exception caught by scheduler library ═════════════════════════════════
'package:flutter/src/rendering/mouse_tracker.dart': Failed assertion: line 201 pos 12: '!_debugDuringDeviceUpdate': is not true.
════════════════════════════════════════════════════════════════════════════════

[ERROR:flutter/lib/ui/ui_dart_state.cc(199)] Unhandled Exception: 'package:flutter/src/rendering/mouse_tracker.dart': Failed assertion: line 201 pos 12: '!_debugDuringDeviceUpdate': is not true.
#0      _AssertionError._doThrowNew (dart:core-patch/errors_patch.dart:46:39)
#1      _AssertionError._throwNew (dart:core-patch/errors_patch.dart:36:5)
#2      MouseTracker._deviceUpdatePhase
package:flutter/…/rendering/mouse_tracker.dart:201
#3      MouseTracker.updateWithEvent.<anonymous closure>
package:flutter/…/rendering/mouse_tracker.dart:309
#4      MouseTracker._monitorMouseConnection
package:flutter/…/rendering/mouse_tracker.dart:190

My code for the view:

@override
  Widget build(BuildContext context) {
    return ViewModelBuilder<TechTreeViewModel>.reactive(
      builder: (context, model, snapshot) => ScaffoldBase(
        body: 

// I just tried to see if this is caused by unbound sizes... its not
SizedBox(
          height: 400,
          width: 400,
          child: InteractiveViewer(
            constrained: false,
            scaleEnabled: false,
            maxScale: 1,
            minScale: 1,
            boundaryMargin: EdgeInsets.all(100),
            child: GraphView(
              algorithm: BuchheimWalkerAlgorithm(
                model.builder,
                TreeEdgeRenderer(model.builder),
              ),
              graph: model.graph,
              paint: Paint()
                ..color = Colors.green
                ..strokeWidth = 1
                ..style = PaintingStyle.stroke,
              builder: (Node node) {
                if (node.key.value is TechTreeConditionNode) {
                  return conditionNode(node.key.value);
                } else if (node.key.value is TechTreeTechnologyNode) {
                  return rootNode(node.key.value);
                }

                return Container(
                  width: 100,
                  height: 100,
                );
              },
            ),
          ),
        ),
      ),
    );
  }

  Widget rootNode(TechTreeTechnologyNode nodeModel) {
    return InkWell(
      child: Container(
        height: 100,
        width: 200,
        padding: EdgeInsets.all(16),
        child: Column(
          children: [
            Text(nodeModel.technology.name),
          ],
        ),
      ),
    );
  }

And inside my ViewModel:

  Graph graph;
  BuchheimWalkerConfiguration builder;

  TechTreeViewModel( ) {
    graph = Graph()..isTree = true;
    builder = new BuchheimWalkerConfiguration();
  }

I tried to find out, what is causing this issue, but haven't found anything. If you need more info, please let me know

[nabil6391]

The error happens for any algorithm ?

[DirtyNative]

Happens also with SugiyamaAlgorithm

[nabil6391]

Can you try wrapping the text with Center widget

Try updating the flutter channel

[nabil6391]

Is this still relevant? otherwise I will close this