Crashing on passive tree generation

[DanajZ]

Under certain conditions I am getting an exception when attempting to generate a skill tree. I'll attach a stack trace and the build

   at PoESkillTree.TreeGenerator.Algorithm.Model.GraphNode..ctor(IEnumerable`1 nodes) in C:\Users\Danaj\Source\Repos\PoESkillTree\WPFSKillTree\TreeGenerator\Algorithm\Model\GraphNode.cs:line 62
   at PoESkillTree.TreeGenerator.Algorithm.Model.SearchGraph.SetStartNodes(IReadOnlyCollection`1 startNodes) in C:\Users\Danaj\Source\Repos\PoESkillTree\WPFSKillTree\TreeGenerator\Algorithm\Model\SearchGraph.cs:line 41
   at PoESkillTree.TreeGenerator.Solver.AbstractSolver`1.CreateStartNodes(SearchGraph searchGraph) in C:\Users\Danaj\Source\Repos\PoESkillTree\WPFSKillTree\TreeGenerator\Solver\AbstractSolver.cs:line 202
   at PoESkillTree.TreeGenerator.Solver.AbstractSolver`1.BuildSearchGraph() in C:\Users\Danaj\Source\Repos\PoESkillTree\WPFSKillTree\TreeGenerator\Solver\AbstractSolver.cs:line 182
   at PoESkillTree.TreeGenerator.Solver.AbstractSolver`1.Initialize() in C:\Users\Danaj\Source\Repos\PoESkillTree\WPFSKillTree\TreeGenerator\Solver\AbstractSolver.cs:line 107
   at PoESkillTree.TreeGenerator.Solver.AbstractGeneticSolver`1.Initialize() in C:\Users\Danaj\Source\Repos\PoESkillTree\WPFSKillTree\TreeGenerator\Solver\AbstractGeneticSolver.cs:line 79
   at PoESkillTree.TreeGenerator.ViewModels.ControllerViewModel.<InitializeAsync>b__56_0() in C:\Users\Danaj\Source\Repos\PoESkillTree\WPFSKillTree\TreeGenerator\ViewModels\ControllerViewModel.cs:line 219
   at System.Threading.Tasks.Task.InnerInvoke()
   at System.Threading.Tasks.Task.<>c.<.cctor>b__274_0(Object obj)
   at System.Threading.ExecutionContext.RunFromThreadPoolDispatchLoop(Thread threadPoolThread, ExecutionContext executionContext, ContextCallback callback, Object state)

<?xml version="1.0" encoding="utf-8"?>
<PoEBuild xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <Name>New build</Name>
  <Realm>PC</Realm>
  <Level>1</Level>
  <Url>https://www.pathofexile.com/passive-skill-tree/AAAABgIAAAAA</Url>
  <LastUpdated>2021-10-24T04:07:03.8901791-04:00</LastUpdated>
  <CustomGroups />
  <Bandits>
    <Choice>None</Choice>
  </Bandits>
  <CheckedNodeIds>
    <unsignedShort>31359</unsignedShort>
    <unsignedShort>9535</unsignedShort>
    <unsignedShort>44988</unsignedShort>
    <unsignedShort>7263</unsignedShort>
    <unsignedShort>16236</unsignedShort>
    <unsignedShort>15290</unsignedShort>
    <unsignedShort>544</unsignedShort>
    <unsignedShort>61039</unsignedShort>
    <unsignedShort>1325</unsignedShort>
    <unsignedShort>48438</unsignedShort>
    <unsignedShort>15344</unsignedShort>
    <unsignedShort>11239</unsignedShort>
    <unsignedShort>3309</unsignedShort>
    <unsignedShort>39821</unsignedShort>
    <unsignedShort>60803</unsignedShort>
    <unsignedShort>6542</unsignedShort>
    <unsignedShort>94</unsignedShort>
    <unsignedShort>19858</unsignedShort>
    <unsignedShort>9206</unsignedShort>
    <unsignedShort>36221</unsignedShort>
    <unsignedShort>24133</unsignedShort>
    <unsignedShort>53114</unsignedShort>
    <unsignedShort>65210</unsignedShort>
    <unsignedShort>48099</unsignedShort>
    <unsignedShort>32117</unsignedShort>
    <unsignedShort>19069</unsignedShort>
    <unsignedShort>34678</unsignedShort>
    <unsignedShort>26528</unsignedShort>
    <unsignedShort>58271</unsignedShort>
    <unsignedShort>40743</unsignedShort>
    <unsignedShort>64241</unsignedShort>
    <unsignedShort>55307</unsignedShort>
    <unsignedShort>15837</unsignedShort>
    <unsignedShort>26471</unsignedShort>
    <unsignedShort>51881</unsignedShort>
  </CheckedNodeIds>
  <CrossedNodeIds />
  <ConfigurationStats />
  <AdditionalData>{
  "TreeGenerator": {
    "SelectedTabIndex": 0,
    "SteinerTab": {
      "ExcludeCrossed": true
    },
    "AdvancedTab": {
      "AdditionalPoints": 22,
      "Iterations": 3,
      "IncludeChecked": true,
      "ExcludeCrossed": true,
      "TreePlusItemsMode": false,
      "WeaponClass": 12,
      "OffHand": 1,
      "Tags": 0,
      "AttributeConstraints": [],
      "PseudoAttributeConstraints": []
    },
    "AutomatedTab": {}
  }
}</AdditionalData>
  <Version>1.0</Version>
</PoEBuild>

[EmmittJ]

Ok, so I fixed an issue with loading skill trees (I think that might be the problem here). Basically, when you switch to a blank tree the root node wasn't being allocated. There appears to be a different issue with the advanced generator skipping nodes. The normal "Tagged Nodes" generator is working fine

[DanajZ]

It didn't seem to fix this particular issue. Interestingly enough I was able to run it after I reset and then rebuilt the checked nodes. Below I have included two trees. The 'Works Fine' tree worked initially but when I added a new skill choice it seemed to crash after I tried to generate the tree again.

I think it may also have to do with the undo feature potentially? I was able to run the generator after resetting the tree but it broke when I did the following:

1. Load the 'Works Fine' Build
2. Use Run 'tagged nodes' generator
3. Tree will build fine
4. Press ctrl + Z to undo the tree
5. Allocate the skill 'Toxic Strikes' (This is also the 'Exception' build below)
6. Use Run 'tagged nodes' generator
7. Exception occurs

Either way you're probably right; it has nothing to with the node from what I've tested I can allocate and generate the tree fine with any of these nodes, it's probably a very specific set of actions that is causing the issue.

Thanks for all your hard work!

Works Fine:

<?xml version="1.0" encoding="utf-8"?>
<PoEBuild xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <Name>New build</Name>
  <Realm>PC</Realm>
  <Level>1</Level>
  <Url>https://www.pathofexile.com/passive-skill-tree/AAAABgIAAAAA</Url>
  <LastUpdated>2021-10-26T19:33:13.8831482-04:00</LastUpdated>
  <CustomGroups />
  <Bandits>
    <Choice>None</Choice>
  </Bandits>
  <CheckedNodeIds>
    <unsignedShort>31359</unsignedShort>
    <unsignedShort>9535</unsignedShort>
    <unsignedShort>44988</unsignedShort>
    <unsignedShort>7263</unsignedShort>
    <unsignedShort>15290</unsignedShort>
    <unsignedShort>544</unsignedShort>
    <unsignedShort>61039</unsignedShort>
    <unsignedShort>1325</unsignedShort>
    <unsignedShort>48438</unsignedShort>
    <unsignedShort>15344</unsignedShort>
    <unsignedShort>11239</unsignedShort>
    <unsignedShort>3309</unsignedShort>
    <unsignedShort>39821</unsignedShort>
    <unsignedShort>60803</unsignedShort>
    <unsignedShort>6542</unsignedShort>
    <unsignedShort>94</unsignedShort>
    <unsignedShort>19858</unsignedShort>
    <unsignedShort>9206</unsignedShort>
    <unsignedShort>36221</unsignedShort>
    <unsignedShort>24133</unsignedShort>
    <unsignedShort>53114</unsignedShort>
    <unsignedShort>65210</unsignedShort>
    <unsignedShort>48099</unsignedShort>
    <unsignedShort>32117</unsignedShort>
    <unsignedShort>19069</unsignedShort>
    <unsignedShort>34678</unsignedShort>
    <unsignedShort>26528</unsignedShort>
    <unsignedShort>58271</unsignedShort>
    <unsignedShort>40743</unsignedShort>
    <unsignedShort>64241</unsignedShort>
    <unsignedShort>55307</unsignedShort>
    <unsignedShort>15837</unsignedShort>
    <unsignedShort>26471</unsignedShort>
    <unsignedShort>51881</unsignedShort>
  </CheckedNodeIds>
  <CrossedNodeIds />
  <ConfigurationStats />
  <AdditionalData>{
  "TreeGenerator": {
    "SelectedTabIndex": 0,
    "SteinerTab": {
      "ExcludeCrossed": true
    },
    "AdvancedTab": {
      "AdditionalPoints": 22,
      "Iterations": 3,
      "IncludeChecked": true,
      "ExcludeCrossed": true,
      "TreePlusItemsMode": false,
      "WeaponClass": 12,
      "OffHand": 1,
      "Tags": 0,
      "AttributeConstraints": [],
      "PseudoAttributeConstraints": []
    },
    "AutomatedTab": {}
  }
}</AdditionalData>
  <Version>1.0</Version>
</PoEBuild>

Exception:

<?xml version="1.0" encoding="utf-8"?>
<PoEBuild xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <Name>New build</Name>
  <Realm>PC</Realm>
  <Level>1</Level>
  <Url>https://www.pathofexile.com/passive-skill-tree/AAAABgIAAAAA</Url>
  <LastUpdated>2021-10-26T19:36:41.0538438-04:00</LastUpdated>
  <CustomGroups />
  <Bandits>
    <Choice>None</Choice>
  </Bandits>
  <CheckedNodeIds>
    <unsignedShort>31359</unsignedShort>
    <unsignedShort>9535</unsignedShort>
    <unsignedShort>44988</unsignedShort>
    <unsignedShort>7263</unsignedShort>
    <unsignedShort>15290</unsignedShort>
    <unsignedShort>544</unsignedShort>
    <unsignedShort>61039</unsignedShort>
    <unsignedShort>1325</unsignedShort>
    <unsignedShort>48438</unsignedShort>
    <unsignedShort>15344</unsignedShort>
    <unsignedShort>11239</unsignedShort>
    <unsignedShort>3309</unsignedShort>
    <unsignedShort>39821</unsignedShort>
    <unsignedShort>60803</unsignedShort>
    <unsignedShort>6542</unsignedShort>
    <unsignedShort>94</unsignedShort>
    <unsignedShort>19858</unsignedShort>
    <unsignedShort>9206</unsignedShort>
    <unsignedShort>36221</unsignedShort>
    <unsignedShort>24133</unsignedShort>
    <unsignedShort>53114</unsignedShort>
    <unsignedShort>65210</unsignedShort>
    <unsignedShort>48099</unsignedShort>
    <unsignedShort>32117</unsignedShort>
    <unsignedShort>19069</unsignedShort>
    <unsignedShort>34678</unsignedShort>
    <unsignedShort>26528</unsignedShort>
    <unsignedShort>58271</unsignedShort>
    <unsignedShort>40743</unsignedShort>
    <unsignedShort>64241</unsignedShort>
    <unsignedShort>55307</unsignedShort>
    <unsignedShort>15837</unsignedShort>
    <unsignedShort>26471</unsignedShort>
    <unsignedShort>51881</unsignedShort>
    <unsignedShort>16236</unsignedShort>
  </CheckedNodeIds>
  <CrossedNodeIds />
  <ConfigurationStats />
  <AdditionalData>{
  "TreeGenerator": {
    "SelectedTabIndex": 0,
    "SteinerTab": {
      "ExcludeCrossed": true
    },
    "AdvancedTab": {
      "AdditionalPoints": 22,
      "Iterations": 3,
      "IncludeChecked": true,
      "ExcludeCrossed": true,
      "TreePlusItemsMode": false,
      "WeaponClass": 12,
      "OffHand": 1,
      "Tags": 0,
      "AttributeConstraints": [],
      "PseudoAttributeConstraints": []
    },
    "AutomatedTab": {}
  }
}</AdditionalData>
  <Version>1.0</Version>
</PoEBuild>