I updated from 1.3.2(or whatever it was) to 2.0, tried to load my game and twice got the error below.

I followed the instructions it shows, removed the mod, saved my game, reinstated the mod and reloaded the save, and that fixed it. But just in case, this is the error I was getting.

Also, I wasn't actually using a condenser in this save, only had the mod enabled from a previous save I used it in.

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The mod Quality condenser (2.0.0) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event quality-condenser::on_configuration_changed
quality-condenser/control.lua:188: not compatible with quality-condenser <= 2.0.0, remove the mod, save your world, then update the mod.
stack traceback:
[C]: in function 'error'
quality-condenser/control.lua:188: in function <quality-condenser/control.lua:186>

the error triggers no matter if you place it down or not.

i had to make significant changes to the code that were too annoying to migrate so the mod is no longer compatible with earlier versions of the mod.

does that mean anyone who started with 1.3.2 or earlier won't be able to run 2.0 and should not upgrade?
or removing all condensers, remove the mod, save the game, then upgrade the mod to 2.0 and try again then?

does that mean anyone who started with 1.3.2 or earlier won't be able to run 2.0 and should not upgrade?
or removing all condensers, remove the mod, save the game, then upgrade the mod to 2.0 and try again then?

Short version? Yes. From what I can tell you'll need to install the older version of the mod manually in order to continue using it on saves that were started on older versions of the mod.

You can get the older versions from the mod's Downloads page.

You can also, as you suggested, uninstall the mod and then reinstall it. I just tested this in an existing save game and it seemed to work. Mind that I had not yet placed any of these down yet so your milage may vary.

if you have some still placed down you'll lose those buildings, the module inside it, and any items inside.

if you remove the buildings first, uninstall, save, reinstall, then the only thing you lose is the research for it and any already crafted quality condensers.

if its too much trouble then just stay on 1.3.2 for your current world, just keep in mind that there won't be any bugfixes compatible with pre-2.0.0 versions.

Thanks for the information, Quezler, and your continued work on these and your other mods! Cheers!

Rather than make yet another duplicate - so I cant launch the save thanks to the error, so I assume I have no choice but to remove the mod, losing all items/modules in condensors as well as the condensors themselves? Then reinstall it?

How about if you KNOW your update is going to break everyone's save, don't f'n release it. So annoying.