Factorio Forums

Hi, I´m playing Factorio for 2000+ hours and today I have witnessed my first Bug.
I have played earlier today without any negativ events. I saved the game and closed the program using the Exit button.
Some hours later i came home again, started my pc, started Factorio and wanted to load my save, but Factorio tells me:

Notice
[savegame location]/ZwölfterVersuch.zip failed: Bad zip file

So i cant open my savegame. The strange thing is, that i keep a duplicate of all my savefiles but I get the same error with both. The autosaves dont work too, same error.
Older savegames from previous games are working.

So i lost hundreds of hours of work

P.S.: I use the Upgraded Gas Generator mod. But i havent placed any mod entity in this savegame yet.

Some hardware of yours seems to be dying.

Faulidenga wrote: ↑

Mon Apr 05, 2021 5:09 pm

Older savegames from previous games are working.

So i lost hundreds of hours of work

If the "older games" you tested have not autosaved while testing them, your auto save should have a working version from "zwölfter versuch"

Loewchen wrote: ↑

Mon Apr 05, 2021 5:16 pm

Some hardware of yours seems to be dying.

naw this is happening more frequently for me on 1.1.30 as well.

i've got non-blocking saves enabled. does the OP?

you could have asked a few questions instead of throwing out the vague "1/0 magic" BS excuses.

ptx0 wrote: ↑

Tue Apr 06, 2021 1:47 am

naw this is happening more frequently for me on 1.1.30 as well.

What do you mean by "this" - game saves without any apparent problem, but the produced ZIP file is from some point just zeroes? (In this particular case, 99.9% of the file are just zeroes)

Also, what do you mean by "more frequently"? Normal is that it doesn't happen ever. Do you experience this issue regularly? Since when?

ptx0 wrote: ↑

Tue Apr 06, 2021 1:47 am

i've got non-blocking saves enabled. does the OP?

As can be seen from the logs OP provided, OP uses Windows build, which doesn't have non-blocking saving feature.

ptx0 wrote: ↑

Tue Apr 06, 2021 1:47 am

you could have asked a few questions instead of throwing out the vague "1/0 magic" BS excuses.

What questions should we ask when someone experiences this issue?

Holly manoly! Does that mean savegames are not safe? I never experienced this bug, but I override my megabase save every time (vs creating a new one with ticking up postfixes).

I will switch to saving with ticking up postfixes for now, although this will cost a lot of disk space.

Looking at the op's log file, I see In my log file, it says (up to date win10) I am pointing this out, because I was thinking, that maybe the zip libraries, the OP's OS is using, are faulty or do not work well with factorio. @Faulidenga: Did you change anything with your OS (reinstall, up-/downgrade, install or remove applications) before that happened?

What zip library does Factorio use? It's own or some OS libraries?

Impatient wrote: ↑

Tue Apr 06, 2021 11:42 am

What zip library does Factorio use? It's own or some OS libraries?

It's statically linked zlib

posila wrote: ↑

Tue Apr 06, 2021 11:03 am

ptx0 wrote: ↑

Tue Apr 06, 2021 1:47 am

naw this is happening more frequently for me on 1.1.30 as well.

What do you mean by "this" - game saves without any apparent problem, but the produced ZIP file is from some point just zeroes? (In this particular case, 99.9% of the file are just zeroes)

Also, what do you mean by "more frequently"? Normal is that it doesn't happen ever. Do you experience this issue regularly? Since when?

ptx0 wrote: ↑

Tue Apr 06, 2021 1:47 am

i've got non-blocking saves enabled. does the OP?

As can be seen from the logs OP provided, OP uses Windows build, which doesn't have non-blocking saving feature.

ptx0 wrote: ↑

Tue Apr 06, 2021 1:47 am

you could have asked a few questions instead of throwing out the vague "1/0 magic" BS excuses.

What questions should we ask when someone experiences this issue?

anything that would help in getting a solution. as you've pointed out, they run Windows (is it WSL? native? i don't know how that stuff works.) and I run Linux, so asking me for questions on my issue is probably unhelpful here.

however, I didn't notice it before a fix for Steam + non-blocking saves went in during mid-to-late 1.1 releases. i never had this happen before that. and in my case, i have to wait a few moments after the save progress bar completes before doing anything.

it's possible they've quit the game before the save completes. that is totally possible here and it results in a corrupt zip file.

however, that still occurs even after the progress bar completes - i have to wait, to ensure the zip file works. sometimes i save it twice just to avoid the possibility of losing several hours of work.

after the third time, i set my number of autosaves to 99 and 1 minute interval.