Bug: Game Crash Opening Exosuit Collection - NullReferenceException

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Bug: Crash Upon Trying to Open Exosuit Collection or Backup Expedition Suit

Hey guys,

I've run into a rather frustrating bug and wanted to see if anyone else has experienced something similar or has any insights. Basically, the game crashes whenever I try to access the Exosuit Collection. It seems to be related to importing an Exosuit outfit from a different save, specifically into my current Expedition save. Let's dive into the details so you can understand better.

The Problem: Exosuit Collection Crash

The issue occurs when I attempt to open the Collection window from the Exosuit menu in my current Expedition save. I've already created an entry in the Collection for the outfit I want to import. However, the moment I try to access the Collection, the whole thing goes belly up and crashes, giving me a System.NullReferenceException. It's super annoying!

Error Details

  • Type: System.NullReferenceException
  • Message: Object reference not set to an instance of an object.

You can find the full error report here: report.20251102184951.html

Stack Trace

at NomNom.ViewModels.EditorSaveSuitViewModel.ExportCollection()
at Prism.Commands.DelegateCommand.Execute()
at Prism.Commands.DelegateCommand.Execute(Object parameter)
at Prism.Commands.DelegateCommandBase.System.Windows.Input.ICommand.Execute(Object parameter)
at System.Windows.Controls.Button.OnClick()
at System.Windows.Controls.Primitives.ButtonBase.OnMouseLeftButtonUp(MouseButtonEventArgs e)
at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
at System.Windows.UIElement.ReRaiseEventAs(DependencyObject sender, RoutedEventArgs args, RoutedEvent newEvent)
at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
at System.Windows.UIElement.RaiseTrustedEvent(RoutedEventArgs args)
at System.Windows.Input.InputManager.ProcessStagingArea()
at System.Windows.Interop.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel)
at System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at System.Windows.Interop.HwndSource.InputFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

The stack trace clearly points to NomNom.ViewModels.EditorSaveSuitViewModel.ExportCollection() as the culprit. This suggests the issue is likely within the code responsible for exporting or handling the Exosuit Collection data. More specifically, it appears an object is being accessed without being properly initialized, leading to the NullReferenceException. Understanding the root cause requires examining the ExportCollection() method and how it interacts with the game's save data and asset management systems.

Potential Causes and Troubleshooting Steps

Okay, so let's break down what might be causing this annoying crash and what we can do to try and fix it. Since the error is a NullReferenceException within the ExportCollection method, it means the code is trying to use something that doesn't exist or hasn't been properly set up.

  1. Missing or Corrupted Save Data:

    • The Idea: The game might be struggling to find or read the save data from the other save where the Exosuit outfit is stored. Think of it like trying to find a specific book in a library where the catalog is messed up. The game simply can't locate the needed data.
    • What to Do:
      • Double-check that the save from which you're trying to import the outfit is present and not corrupted. You can try loading that save to see if it works normally.
      • Back up your current Expedition save (always a good idea before messing with things!).
      • Verify the game files through Steam (or whatever platform you're using). This will check for and replace any corrupted files.

  2. Incompatible Game Versions:

    • The Idea: If the save you're importing from is from a different version of the game, there might be compatibility issues. Imagine trying to use a charger from an old phone on a brand new one тАУ sometimes it just doesn't work.
    • What to Do:
      • Make sure both saves (the one you're importing from and the Expedition save) are running on the same version of the game. Updates can sometimes change the save format, causing problems.

  3. Mod Interference (If Applicable):

    • The Idea: If you're using any mods, they could be interfering with the Exosuit Collection system. Mods can sometimes tweak the game in unexpected ways, leading to conflicts and crashes. It's like adding too many cooks to the kitchen.
    • What to Do:
      • Try disabling any mods you have installed and see if the issue persists. If the crash goes away, then one of your mods is the culprit.
      • If you have a lot of mods, try disabling them one by one (or in small groups) to pinpoint the problematic mod.
      • Check if any of your mods are known to cause issues with save importing or the Exosuit system. The mod's description or community forums might have some clues.

  4. Bug in the Game Code:

    • The Idea: Sometimes, it's just a bug in the game's code that the developers need to fix. These things happen! No code is perfect, after all.
    • What to Do:
      • Report the bug to the game developers (Hello Games) through their official channels (website, forums, etc.). The more information you can provide (like the error message and stack trace), the better.
      • Keep an eye out for game updates, as they often include bug fixes.

  5. Memory Issues:

    • The Idea: Although less likely given the specific error, sometimes crashes can occur if the game runs out of memory while trying to load or process data. Think of it like trying to cram too much information into your brain at once.
    • What to Do:
      • Close any unnecessary programs running in the background to free up memory.
      • Make sure your computer meets the game's minimum or recommended system requirements.
      • Try lowering the game's graphics settings to reduce memory usage.

Diving Deeper into the Stack Trace

Let's take a closer look at that stack trace again. It gives us some pretty important clues about where the problem lies:

at NomNom.ViewModels.EditorSaveSuitViewModel.ExportCollection()
at Prism.Commands.DelegateCommand.Execute()
at Prism.Commands.DelegateCommand.Execute(Object parameter)
...
  • NomNom.ViewModels.EditorSaveSuitViewModel.ExportCollection(): This is the function where the error originates. It's the prime suspect! This function is likely responsible for gathering the Exosuit outfit data from the Collection and preparing it for export to the current save.
  • Prism.Commands.DelegateCommand.Execute(): This suggests that the ExportCollection function is being triggered by a command, likely a button click or some other user interaction. So, clicking the button to open the Collection is what sets off the chain of events leading to the crash..

Given this information, the most likely scenario is that something within the ExportCollection function is not being properly initialized or is returning a null value when it shouldn't be. This could be due to a missing file, a corrupted data structure, or a bug in the logic of the function itself.

Temporary Workarounds (If Possible)

While we try to figure out the root cause, here are a few things you could try as temporary workarounds:

  • Try a Different Outfit: See if the crash only happens with a specific outfit. If so, the outfit data may be corrupted.
  • Recreate the Outfit: Try recreating the outfit in the original save and re-adding it to the Collection.
  • Avoid the Collection: If possible, try another method of transferring the outfit (though this might not be available).

Reporting the Bug

It's really important to report this bug to Hello Games so they can investigate and fix it. When you report the bug, be sure to include:

  • A detailed description of the problem (what you were doing when the crash occurred).
  • The error message and stack trace.
  • Your game version.
  • Your system specifications (CPU, GPU, RAM, OS).
  • Whether you're using any mods.
  • Any steps you've tried to troubleshoot the issue.

Conclusion

Dealing with game crashes is never fun, but hopefully, by understanding the error message, stack trace, and potential causes, we can get closer to finding a solution. Remember to try the troubleshooting steps, report the bug, and keep an eye out for game updates. Good luck, and I hope you can get your Exosuit looking spiffy soon!

I hope this helps, and if anyone has any further insights or suggestions, please share them. Let's work together to squash this bug!