Cancel upgrade needed!

[Taija]

It would be crucial to have that kind of option to cancel upgrade in the game, so you wouldn't waste by accident precious gold coins or materials. Upgrades are way too expensive anyways. I just accidentally clicked upgrade, when I was about to delete building.. Now half the days work is ruined.. I'm not so rich, so I have to really hard to think what to upgrade next.

I already lost materials one other day because of the bug. I accidentally clicked upgrade twice, so game charged me twice. Really makes me feel like I should walk on my toes and tie my hands not to click anywhere by accident..

[Acee]

Agreed, something should be done about this.

[Majikrider]

The fact that there is no cancel/confirm option to the upgrade button means that many players are constantly losing resources or GOLD. This is one of the major irritations of the game because it takes so long to save these that to lose them at the click of a button is absolutely infuriating. This needs to be addressed as a matter of urgency before the game goes live, because when people start losing stuff that they have paid for you will have a lot of very unhappy customers.

[pat5019]

I also have accidently upgraded a building ( happened twice ) when you want to open the stats of a building and with your second click ,because it doesn't respond right away you push the upgrade botton.
It would be good too have an option too cancel for a few seconds.
Lost a few 100 gold coins that way.