I zipped 'Voobly Mods' folder (~2,5GB) from my old pc which is voobly works fine and moved to my new pc's steam folder, it fixed for now.

Same here, i tried reistall Age yesterday but i can't download mods
Not even the 1.5RC patch

Someone had the same problem years ago

https://www.voobly.com/forum/thread/311460

But this time seens that it is voobly, it's not us

Try downloading it using the Voobly integrated browser. We will soon release an update that fixes that behavior.

Could you please check whether the UAC is turned on?

Uac means this?

I am getting the same exact error message and cannot get any download / install of any of the game patches. Tried from voobly browser with same behavior.

Turning UAC off breaks Voobly, please make sure it's turned on (+ reboot after). That should also solve the problem you are having with downloads.

Also keep in mind, that turning off UAC is a major security risk.

same me. i have some problem with 1.5 RC?

I have same problem, even after following above steps, hope for a fix soon

i managed to play a game, but was FP (i have never been FP before), but got the same error messages as previous posters

Please create a new thread with your problem, don't post own issues in existing threads dealing with a completely different matter. I will assist you in your thread.

We have released a new Knowledge Base article. Please follow all steps and let me know, whether this fixes the problem "Could not find Game Installation Directory" for you:
[You must login to view link]

Thank you.