Diablo® III

Unable to validate core data files?

It's getting really annoying ... as soon as i get to NV 4 or 5, i get this stupid error. Tried reinstalling, but it's just the same, tried deleting those folders someone suggested, same result. Please try to implement a option on the launcher so we can CHECK INTEGRITY FILES from once in a while.
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i try to find that folder in C:\Programdata\Blizzard Entertainment. but i cant find it. i'm using windows xp. thx
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Blizzard should take a page out of Steam's book and let users validate the integrity of their local content. Patch 1.0.5 is causing this error now too.
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Yes. Just updated to 1.0.5, and got the error for the first time. Waiting for Blizzard to fix it.
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10/17/2012 10:15 AMPosted by Jorundr
Yes. Just updated to 1.0.5, and got the error for the first time. Waiting for Blizzard to fix it.


Yep me too man. I hope they fix it fast.
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Add me to this list aswell!
The more we gather to complain about this, hopefully the faster something will get done!
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Same for me.. happens in act 3,, can only stay in game 10sec. but!

I have updated diablo 3 with new patch, and played the game alot. I havent done anything to the computer, installed new programs or change any settings. The only thing I have done or use my computer for is this game Diablo3. Since the error came out of the blue, tells me that the problem is not the computer, its blizzard. I am thinking Nvidia problems.

I am running nvidia, ar you=?
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Having this problem as well. Every time I try to go into Kulle's archives it boots me with this message. Solo and public games, doesn't matter. Played act 1 for a few hours without problem but as soon as I attempt the Archives again I get booted.

BLIZZ, we need a fix please.
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Adding my voice to the clamour. Game is unplayable after 1.0.5. PLEASE fix this Blizzard!
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Same here, this problem start since the last update.
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Great patch! I can't play the game anymore! Same error...
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Been getting this error since patch 1.0.5. Always happens when entering (by entrance or teleport to player) lvl3 of the breached keep quest. Lvl1-2 and larder works without issues...

Also since last patch, I notice a bunch of glitches, some lagspikes and the stability that we had in patch 1.0.4 seemed to be dissapeared :(
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I have the same problem and I'm really getting tired of this....
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I managed to get rid of that error by uninstalling the game and installing it again using the download client.
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same problem here after istall 1.0.5 patch. ty blizzard!

i use NVIDIA GeForce GTX 460

i wanna play for my money!!!
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first time I have ever gotten this error....on a mac too. Just got booted out of a game for this twice in a row after getting 5 stacks....very frustrating!
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Same problem. Everythig was fine until I entered Royal Cripts on Inferno diff. After few seconds it crashed telling me Diablo 3 was unable to verify core data files and now it happens all the time I try to play.

Running ATI Radeon HD5700 graphics.
Edited by Fuertes#2301 on 10/21/2012 10:47 AM PDT
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Uninstall\Install did the trick! Finally!
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I'm having the same problem :(
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Same problem, after updating to 1.0.5
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