A very normal assignment fails in lua.

[yagaodirac]

https://github.com/YagaoDirac/Bug-repor ... t-download

Directly run the scenario.
The bug occurs within a second.
In log, it's very clear. A very strange behavior happens. Inside the add function of array_simple, a field of the added element is removed.

The array_simple is a container. It works properly. I used it in Ore Beach.

So, what can I do with the bug?

[boskid]

Things not to do when requesting help:
- making reproduction as unhelpful as possible (not providing direct zip, forcing to download git repo)
- not providing any details as to what error it produces, making it literally required to download whatever it is and run.
- providing full code without any size reduction, not narrowing onto the issue.
I would say it is really rude, if you want help, please be helpful from your side.

Only issue i see is this:

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Error while running event BiterOre::on_player_created (ID 25)
No character.
stack traceback:
	[C]: in function '__newindex'
	__BiterOre__/control.lua:315: in function 'set_character_modifier'
	__BiterOre__/control.lua:346: in function <__BiterOre__/control.lua:336>

And it literally says what is wrong: "No character".
This is common issue to solve due to freeplay starting cutscene.

After finally finding hints to move this to scenario, I get this error:

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Error while running event level::on_chunk_generated (ID 12)
...ly-playing/src/Component-bitore_source_content_biter.lua:13: attempt to perform arithmetic on field 'amount_per_minute' (a nil value)
stack traceback:
	...ly-playing/src/Component-bitore_source_content_biter.lua:13: in function <...ly-playing/src/Component-bitore_source_content_biter.lua:12>

But this looks like a programming issue on your side so i am not trying to debug that.

[jodokus31]

3 wrong bug reports, which are revealing themselves as modding help topics, in short time is also a bit taxing, i would assume.

[yagaodirac]

If you have looked at the log just lines above the final error info, you would find that, a table with a field named "amount_per_minute" is gone after a line like.

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cont[index] = this table.

The container should be very correct. Then what is the problem?
I don't believe it's possible to do "wild pointer" in lua.

[Klonan]

The container should be very correct. Then what is the problem?

If you can post the whole code snippet related we can try to help

For many years and many thousands of Lua mods, nobody has had problems with the Lua, so generally if something is crashing is it most likely your own mistake

[yagaodirac]

OK, thanks. I plan to assemble all the parts in that project again to see what goes wrong. By the way, I found that it's not practical to set the metatable in on_load when the data structure and relationship scale and get complex. Would you consider doing it in your cpp code?

[eradicator]

it it's not practical to set the metatable in on_load

Recursive reattachment is far from impractical. Just look and learn how other mods do it.