[FIXED] Warzone Dev Error 6034 on Xbox One [NEW]

Call of Duty Modern Warfare players are currently facing dev error 6034 on Xbox One, PC, and PS4. The game is crashing for some players and leading to Dev Error 6634 “Unified Geometry Buffer has reached the max surface allocation limit!“. COD Warzone dev error 6034 could trigger for various reasons, most likely network disconnection and corrupted or unreadable game data.

Most of the players are getting dev error 6034 ww_code_pre_gfx.ff or dev error 6034 eng_code_post_gfx.ff on PC. Here is the list.

dev error 6034 ww_ui_boot.ff

dev error 6034 ww_mp_ hideout ff

Warzone dev error 6034 ww_mp_emporium ff

Modern Warfare dev error 6034 ww_mp_piccadilly ff

Follow the steps below to fix COD dev error 6034 on Modern Warfare and Warzone.

What is Dev Error 6034?

This error is related to unreadable and corrupted game data. In some cases, it is network connection related.

How to fix Warzone Dev error 6034 on Xbox One and PS4/PS5?

The recently released Multiplayer Pack (22GB) was supposed to replace the old data, and having both installed is leading to Warzone dev error 6034 on Xbox.

Uninstall all the older multiplayer data packs including Data Pack 1 and Data Pack 2, except the first multiplayer pack (6.0 GB).

Now install the new multiplayer pack (22GB) and the new Spec Ops and Multiplayer combat pack.

This will allow you to access Multiplayer without any error.

Steps to fix PS4 and Xbox One Dev error 6034 in Warzone and Modern Warfare

Trick 1

1. Launch Call of Duty: Modern Warfare.
2. In the main menu, select Options.
3. Navigate to the General tab.
4. Scroll to the bottom and select Game Installs.

Highlight any content you wish to uninstall.

• Data Pack 1 – required for access to Campaign, Multiplayer, and Spec Ops
• Campaign Pack 1 (Xbox One only) – required to play Campaign
• Campaign Pack 2 (Xbox One only) – required to play Campaign
• Multiplayer Pack (Xbox One only) – required to play Multiplayer
• Multiplayer Pack 2 – required to play Multiplayer
• Special Ops Pack – required to play Special Ops
• Special Ops Pack 2 – required to play Special Ops
• Survival Pack – required to play Special Ops Survival

5. Select Uninstall.

6. Now select Confirm.

Trick 2

If the above trick 1 worked for you, do not follow this one.

Players can install and uninstall packs as mentioned in this video.

Warzone Dev Error 6034 in Multiplayer

Some players are getting Warzone error code 6034 on Xbox One with the message “you have been disconnected from the call of duty servers”. COD MW dev error 6034 could trigger for various reasons, most likely network connection related.

How to Fix Dev Error 6034 in Warzone?

Trick 1

On Xbox One and PlayStation 4/5

• Go to Settings
• Now select Network
• In the Network select Advanced Settings
• Select Alternate MAC address
• Select Clear.

Your console will reboot and the game should work now.

Trick 2

Follow the steps below to change your Wifi router DNS settings.

OpenDNS

PRIMARY: 208.67.222.222
SECONDARY: 208.67.220.220

google DNS

PRIMARY: 8.8.8.8
SECONDARY: 8.8.4.4

How to Fix COD Modern Warfare Dev Error 6034 on PC?

Dev error 6034 PC Fix

Trick 1

1. Navigate to the installation folder for Call of Duty Modern Warfare or Warzone
2. Delete the following files from the installation directory. This will delete the corrupted files.
   • .patch.result
   • .product
   • vivoxsdk_x64.dll
   • Launcher.db
   • Modern Warfare Launcher.exe
3. In the Battle.net launcher, use the Scan and Repair tool. This will uses Battle.net’s Scan and Repair option to replace the missing files with working ones.

Trick 2

• Download the latest drivers and Windows updates.
• Reset the graphics settings back to their default settings.
• Close unwanted background applications.
• Reboot your computer and try again.

Update: A new patch is released to address dev error 6034 on Xbox and PC. Kindly, download the latest update.

COD Modern Warfare dev error 6034 on Xbox One indicates that you have a corrupted game data. A future Warzone and Modern Warfare game update will address Warzone dev error 6034 on Xbox, PC and PS4.