I have played a few games now but I do not know why the game will not let me place this extractor. I produced it in the queue all the way to when it is to be placed and it tells me "Invalid prerequisite" and won't place. I have the tech obviously or I would not have been able to start it in the first place. There are also no enemies near my city or near the place where the extractor will go. It's not a captured city, I've had it the whole game.



What gives? Is this bugged?

Are you by any chance under siege?



If not we'll need a save

No siege. Save zip is attached. The city is "Brownstown".



Thanks



Ardent Mages - Turn 211.zip

It looks like you already have the hydromiel extractor built in Brownstown.



Which still leaves the mystery as to how you queued a second on the same deposit...

MrChoke wrote:
No siege. Save zip is attached. The city is "Brownstown".



Thanks

It would seem that the Hydromiel extractor is already constructed: it cannot be completed because there is already one there. I'm not sure how this came about - some sort of glitch probably. Unfortunately since the save is after this glitch presumably occurred I'm not sure there's any way of identifying what caused it. Did anything in particular happen prior to this blockage?

WOW, yeah you are right. Very strange. I was able to go back to turn 198, 12 turns back and one turn before I got the research for hydromiel extractor. I played it it thru again, choosing the build it and no issue that time, it only allowed it to build once. It built by turn 208 though, so I don't know if I had re-allocated resources before to slow it down to 211. Either way, nothing had happened. The city never got sieged or taken. My only faction war was Broken Lords and that had been over many turns before. I guess we chalk it up to a weird glitch. I can send the save for turn 198 if you think it will help.



Thanks.

wilbefast wrote:
It would seem that the Hydromiel extractor is already constructed: it cannot be completed because there is already one there. I'm not sure how this came about - some sort of glitch probably. Unfortunately since the save is after this glitch presumably occurred I'm not sure there's any way of identifying what caused it. Did anything in particular happen prior to this blockage?

I didn't look at the game....it's possible to be building a district and queue the extractor. Then when the district gets built you get that invalid prereq because the district is now doing the extracting already. Only time i've seen it.

MrChoke wrote:
I can send the save for turn 198 if you think it will help.

Hmm... well if on your second play-through the issue didn't occur it's likely some really specific set of circumstances that will be difficult to reproduce by accident. How odd. We might be able to narrow things down if it occurs again but right now there's not a lot to go on unfortunately.

BigBalls wrote:
I didn't look at the game....it's possible to be building a district and queue the extractor. Then when the district gets built you get that invalid prereq because the district is now doing the extracting already. Only time i've seen it.

Ah yes, that makes sense. In this case though the extractor is no where near the city - it's very curious...