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Graph already contains item!

baldamundo
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baldamundo

baldamundo

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Not really expecting a solution to this, since I was trying to play 1.10 with loads and loads of mods that aren't updated for 1.10, but sort of curious because it was a weird error and it seemed like an obscure one - found almost nothing trying to google it.

Launching a craft on the launchpad I immediately get an overwhelming log-spam for every single part of 

[ERR 11:18:52.294] [FlowGraph]: Graph already contains item! Part probeCoreSphere.v2 with id 4289765918
[ERR 11:18:52.304] [FlowGraph]: Graph already contains item! Part probeCoreSphere.v2 with id 4289765918

which brings the game to a total standstill. But after it's processed it for every part, it seems to be fine at least while everything's stood still. Then as soon as I've hit the first stage, it seems to run the Flowgraph error for every single part every single frame, and brings the whole game to a grinding halt.

Didn't happen though when I tried launching a rover from the SPH, so not entirely clear which conditions it occurs in, but haven't experimented too much.

 

Anyone have any idea what the error's about or what "FlowGraph" even is? When I googled the error I couldn't really find anything.

Having trouble uploading the full log, but will post it when I've got it up

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HansAcker

HansAcker

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  On 7/15/2020 at 4:42 PM, baldamundo said:

Anyone have any idea what the error's about or what "FlowGraph" even is?

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There's a FlowGraph class in KSP that is associated with fuel flow, I think. A vessel's flowGraph member refers to this:

https://kerbalspaceprogram.com/api/class_r_u_i_1_1_algorithms_1_1_stack_flow_graph.html

The error sounds to me as if there's some circular path in the vessel's part tree, traversing the probe core multiple times. Does it happen only to a specific craft?

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baldamundo

baldamundo

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  On 7/15/2020 at 9:37 PM, HansAcker said:

There's a FlowGraph class in KSP that is associated with fuel flow, I think. A vessel's flowGraph member refers to this:

https://kerbalspaceprogram.com/api/class_r_u_i_1_1_algorithms_1_1_stack_flow_graph.html

The error sounds to me as if there's some circular path in the vessel's part tree, traversing the probe core multiple times. Does it happen only to a specific craft?

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Haven't tested extensively, but it didn't seem to happen to rovers - which would fit with what you've said, since they don't have any fuel. Trying to think what mods I have installed that could possibly affect fuel flow.

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infinite_monkey

infinite_monkey

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  On 8/27/2021 at 2:28 AM, zer0Kerbal said:

thank you @baldamundo

an attempt to correct this (should) in ScrapYard is currently being prepared for prerelease. Kindly try it and tell me (back in main thread) if it resolves this issue.

I missed this thread - hopefully it resolves this issue.

 

 

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I'm getting this same error in 1.12.2.

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Urbs

Urbs

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Posted (edited)

Also getting this error. I think it's causing lag inside the VAB.

That's why I started looking at the console.

EDIT: I'm on the latest prerelease.

Here is an snippet from my logs:

  Reveal hidden contents

 

Edited by Urbs
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