8000 Custom Meklab Error · Issue #6790 · MegaMek/mekhq · GitHub
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Custom Meklab Error #6790

Ne 8000 w issue

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Closed
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William12261976 opened this issue Apr 27, 2025 · 5 comments · Fixed by #6808
Closed
5 tasks done

Custom Meklab Error #6790

William12261976 opened this issue Apr 27, 2025 · 5 comments · Fixed by #6808
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@psikomonkie
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Bug Parts/Repair/Refit

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@William12261976
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Brief Description *

When making a custom vehicle, when I used GM mode to refit a custom unit and error popped up. It seems to still create the unit, but posting for completeness.

3. Steps to Reproduce

No response

Attach Files

The Reapers01.cpnx.gz

mekhq.log

Severity *

Critical (Game-breaking/Crash): The game crashes or a core feature (like saving, loading, or network connection) is completely unusable.

MekHQ Suite Version *

MekHQ-0.50.05

Operating System *

Windows 10

Java Version *

17.0.12

Final Verification

  • I confirm this is a single, unique issue that hasn't been reported before
  • I have filled and provided all necessary information above
  • I have included any and all logs, custom units, and CPNX (save) files
  • I have asked on MegaMek Discord about this issue
  • I have confirmed this issue is being opened on the correct repository: MegaMek, MegaMekLab, or MekHQ
@HammerGS
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20:59:03,226 ERROR [mekhq.MekHQ] {AWT-EventQueue-0}
mekhq.MekHQ.lambda$main$1(MekHQ.java:360) - Uncaught java.lang.NullPointerException detected. Please open up an issue containing all logs, the game save file, and customs at https://github.com/MegaMek/megamek/issues . If Sentry is enabled, the error has also been logged.
java.lang.NullPointerException: Cannot invoke "megamek.common.Game.getEntitiesVector()" because "this.game" is null
	at megamek.common.Entity.setC3Master(Entity.java:6294)
	at megamek.common.Entity.setC3Master(Entity.java:6263)
	at megamek.common.util.C3Util.copyC3Networks(C3Util.java:111)
	at mekhq.campaign.parts.Refit.complete(Refit.java:1695)
	at mekhq.campaign.parts.Refit.succeed(Refit.java:1933)
	at mekhq.gui.adapter.UnitTableMouseAdapter.lambda$actionPerformed$1(UnitTableMouseAdapter.java:429)

@HammerGS HammerGS mentioned this issue Apr 27, 2025
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@psikomonkie psikomonkie self-assigned this Apr 27, 2025
@psikomonkie
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I'll take a look at this today.

See: #6753

@psikomonkie
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@William12261976 I believe there is a workaround: Can you confirm if saving & reloading fixes the issue?

I'm unable to check on your save directly - can you upload your customs?

Image

There's still a bug that needs fixed, but hopefully this'll let you continue your campaign while still being able to refit.

Thanks!

@William12261976
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Image

Here is an example.

I just did a quick marauder refit and that is what it says every time I update any unit in meklab.

It still allows it to happen, just makes the error.

@William12261976
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The Reapers1 - Copy.cpnx.gz

psikomonkie added a commit to psikomonkie/mekhq that referenced this issue Apr 28, 2025
@psikomonkie
Issue MegaMek#6790: Prevent NPE from C3; Don't generate events when r…
716addf 
…eloading game entities.
@psikomonkie psikomonkie mentioned this issue Apr 28, 2025
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Scoppio added a commit that referenced this issue May 1, 2025
@Scoppio
Merge pull request #6808 from psikomonkie/issue/6790/c3-refit-npe
4ed2ea3 
Issue #6790: Prevent NPE from C3 when Refitting
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Issue #6790: Prevent NPE from C3 when Refitting psikomonkie/mekhq
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@HammerGS @William12261976 @psikomonkie
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