Recent Update Destroyed my ongoing game, how can I fix it?

[BanditoWalrus]

So I haven't played in a while and came back to find there had been an update, I think relating to the Megacorp DLC.

I loaded my ongoing game to find my economy has been completely and totally destroyed by this update. My income in all resources had previously been great, and now I'm hemorrhaging resources in everything except minerals and my population is going to starve to death in 10 months. I think this is because the update decided to make every district on every planet I had a "City district". So while previously I had a mix of farms, power plants, etc., producing all the resources I need, now ALL of that has been replaced with buildings that boost trade, which is of little use to me since my population is going to quickly starve to death.

Is there any way to turn this update off or reverse it?? Is there any solution other than starting a new game and hoping I finish it before the ~next~ update??

I've had a Paradox game screwed over by an update before, previously in CK2, but it was never screwed over ~this~ hard and the problem caused there was solvable by modding. This time I'm pretty sure modding won't do anything since this update has completely deleted all of my farmlands and power-plants empire-wide.

 

[BlackUmbrellas]

...you loaded a save from an incompatible update. Load a prior save in the correct version.

Its like if you tried loading a pre-2.0 save post-2.0. The fundamental mechanics have changed.

 

[phil_dest]

You can revert to an earlier version of Stellaris with Steam.

 

[Jman5]

On steam right click the name, select property, click beta tab and click one of the pre 2.2 versions.