How To Fix COD Modern Warfare Dev Error 6178

How To Fix COD Modern Warfare Dev Error 6178

A reasonable number of Call of Duty: Modern Warfare players are experiencing game lags, crashes, and other errors on their devices. One of these errors is the Dev Error 6178. You may experience this problem at any time in your gameplay. Usually, it occurs when the camera turns to the player after losing or when a map is opened.

That’s when you see the dialog box showing “Fatal Error: Dev Error 6178”, and after that, the game crashes. I know this can be very frustrating and annoying because it makes the game unplayable and also prevents you from finishing your game.

Luckily for you, this error is resolvable. In this article, we will show you how to fix the Dev Error 6178 in Modern Warfare. You can also see this guide for the Dev Error 6068 and other errors. It doesn’t matter whether you are using Windows or seeing this issue on any other operating system, this troubleshooting guide will help you fix all the errors in COD Modern Warfare.

2019’s COD: Modern Warfare is one of the best first-person shooter video games to grace the gaming industry. It was developed and released by Infinity Ward and Activision respectively. Many gamers have been seeing the Dev Error 6178 on their PC while playing this video game. We will tell you why you are having these errors and how to fix them.

Causes and Reasons for Dev Error 6178 in COD: Modern Warfare

The Dev 6178 Error happens for different reasons. It might occur when you are running an outdated game version or if there is an outdated graphics driver on your device. This error mostly happens due to missing or corrupt game files, incorrect game settings, lower virtual memory, lack of admin access to run the game application, antivirus software program blocking issues, and many more.

Other reasons behind the dev error 6178 are:

  • Leaving too many programs open on your device.
  • Enabling In-Game Overlay.
  • Virtual memory (page file) is low.
  • V-Sync and G-Sync are enabled.
  • The Texture Resolution is set at Low.
  • NVIDIA Highlights are crashing the game.

How To Fix Dev Error 6178 On Call Of Duty Modern Warfare

We have compiled various solutions to help you fix the Dev Error 6178 problem. Many players have solved this error by following the methods and tips provided here.

After rebooting your router and computer, follow all the troubleshooting methods below. Hopefully, one of them will help solve the problem for you.

1. Run The Game As An Administrator

When a game or application runs on the computer, it has to write data on the hard drive for it to save files and run seamlessly. Some parts of the hard drive may require admin access to be overwritten.  When an app or game can’t save a file on that part of the hard disk, it crashes or stops responding. So, running the game as an administrator can help you resolve this issue.

The first thing you should do when you come across problems like this is to run the game exe application file on your PC as an administrator. Doing so grants you access to control and run the program smoothly without facing any complications and interruptions.

Here are the steps to run the game as an admin:

  • Right-click the game icon on your desktop.
  • Select Properties. (If you are using a gaming client like or Steam, right-click and choose the ‘Properties‘ option.
  • Click on the Compatibility tab.
  • Be sure to click the ‘Run this program as an administrator‘ checkbox to checkmark it.
  • Click on Apply.
  • Select OK to save your changes.
  • Launch the game.

2. Turn Off In-Game Overlay From NVIDIA and Other Overlay Applications

Your in-game overlay programs may be responsible for Dev Error 6178 and crashes in Modern Warfare. These overlay programs that you use, while you are playing games, help you take screenshots and record videos of your gameplay to share with friends. Although these features are useful for gamers and streamers if can cause the game to crash, especially when your PC is already struggling to run the game.

Some of the common programs with in-game overlay features include NVIDIA GeForce Experience, AMD Overlay, Xbox Game Bar, Discord, Rivatuner, RGB software, and MSI Afterburner. While these programs run on your computer, their overlay feature may crash the Call of Duty Modern Warfare application so you should disable it.

As you know, the NVIDIA GeForce Experience is enabled by default but you can disable it through these steps:

  • Turn off the game.
  • Launch the NVIDIA GeForce Experience program.
  • Tap the Settings icon at the top.
  • In the ‘General’ tab, locate the ‘In-Game Overlay’ switch and disable it.
  • Save your changes.
  • Close the application and restart your computer.

Follow these steps to disable the Xbox Game Bar on Windows:

  • Open the Start menu.
  • Go to Settings.
  • Select ‘Gaming‘.
  • Proceed to the ‘Xbox Game Bar’ option and turn it off.

Follow these steps to turn off the Discord Overlay:

Thanks to the Discord Overlay, you can text and initiate voice chats while playing a game. If your game is crashing, you can disable the Discord Overlay through these steps:

  • Open Discord.
  • Go to the bottom of the screen, and click on the the Settings gear icon next to your username.
  • Click on the Games tab.
  • Select COD: Modern Warfare.
  • Select ‘Game Overlay’ from the left panel.
  • Tap the ‘Enable In-game overlay‘ toggle to turn it off.
  • Restart your computer to apply the changes.

Suppose you are using other overlay programs like MSI Afterburner, RGB software, Rivaturner, etc, consider disabling them as well.

3. Deactivate V-Sync From The Game Settings and NVIDIA Control Panel

V-Sync, also known as Vertical Sync, is an important graphic feature that allows your game to adjust its frame rate and your monitor’s refresh rate. V-Sync prevents screen tearing, so you will not have a split display or multiple frames during your gameplay.

It is safe to say that the V-Sync functionality is a preventive feature instead of an enhancement feature because it reduces the FPS when needed to prevent the display from tearing. It reduces the display performance, which crashes the game in some cases.

You can disable the V-Sync feature if you have it enabled because it might be responsible for this error.

Here’s how to disable V-Sync from the Modern Warfare settings:

  • Launch the COD Modern Warfare game.
  • Scroll to the bottom of the screen and click on ‘Options’.
  • Switch to the ‘Graphics’ tab.
  • Disable ‘Sync Every Frame (V-Sync)’.

Perhaps, you are using an NVIDIA GPU, which gives you an NVIDIA Control Panel to help you manage and adjust your graphics card settings.

Here’s how to disable V-Sync from the NVIDIA control panel:

  • Open the NVIDIA Control Panel.
  • Click on 3D Settings from the side panel.
  • Select Manage 3D settings.
  • Choose ‘Program Settings’.
  • Tap the ‘Add’ button and add COD: Modern Warfare.
  • Scroll down and look for ‘Vertical Sync’.
  • Turn it off when you see it.

4. Disable G-Sync From NVIDIA Control Panel

G-Sync functions similarly to V-Sync; that is, it prevents screen tearing. In fact, it is considered an upgrade of V-Sync for NVIDIA users.

G-Sync consumes a lot of processing power and it can slow down the game and your PC. Disabling it can improve your PC’s performance and also stop the 6178 error on Modern Warfare and Warzone.

Follow the steps below to disable it:

  • Right-click on the desktop.
  • Select ‘NVIDIA Control Panel
  • Go to Display.
  • Click on Set up G-Sync.
  • Uncheck the box for ‘Enable G-Sync’.
  • Save your changes.
  • Restart your PC.

5. Disable NVIDIA Highlights From The Game Settings

NVIDIA Highlights is a great feature for players who want to save key moments of their gameplay. It automatically saves good moments of your gameplay and you can share those key moments from the overlay in your online gaming community or group.

You may want to disable NVIDIA Highlights because it consumes higher computing power and system resources, which could conflict with the system and cause performance issues.

Therefore, you are advised to turn off NVIDIA Highlights to prevent complications and conflicts at your end. It is important to note that NVIDIA Highlights work is enabled from the game and the NVIDIA GeForce Experience application. If you want to disable this feature, you have to perform from the same places.

Here’s how to disable NVIDIA highlights:

  • Launch Call of Duty Modern Warfare.
  • Scroll down and select the ‘Options’ button.
  • Go to the ‘Graphics’ tab.
  • Look for ‘NVIDIA Highlights’ and disable it.
  • Reboot your computer to apply the changes you made.

6. Close Unwanted Programs and Apps While Running Modern Warfare

When you are running too many programs on your computer, they tend to consume much RAM. As expected, the graphics-heavy game requires a lot of RAM to run properly.

If you intend to play Modern Warfare with other apps running, your game may crash, lag, and display the Dev Error 6178 or any other error notification. Therefore, you can quickly fix the issue by closing all the programs running on your PC except Modern Warfare.

Follow these steps:

  • Right-click the taskbar.
  • Select Task Manager.
  • When you see a list of programs running, right-click any program you want to close and select ‘End Task’.
  • You should do this for all unnecessary apps running.
  • Try launching Modern Warfare when you are done.

7. Run The Game With Medium Or High Texture Resolution

If you are seeing Dev Error 6178 on Call of Duty Modern Warfare, you can fix it by adjusting the texture resolution to normal or high. When you play this game on low Texture settings, it may crash but amazingly it works fine when it is adjusted to normal.

Many gaming PCs can easily run COD Modern Warfare on normal texture settings, so there’s nothing to be worried about. The steps below will help you adjust the texture resolution:

  • Open COD Modern Warfare.
  • Go to ‘Options’.
  • Select the ‘Graphics’ tab.
  • Locate the section ‘Details & Texture’.
  • Adjust the ‘Texture Resolution’ to ‘Normal’.
  • Restart the game to effect the changes.

8. Scan and Repair The Game Files

 Sometimes, this error can be triggered by missing or corrupted game files. So when these files become corrupted, you won’t be able to find the right game files at the right time game and new settings will not apply to the files, which causes game crashes.

Thankfully, you can easily fix this issue by repairing the game files using the game launcher. If you are using the desktop client to play this game, follow these steps:

  • Open the app on your computer.
  • Click on Call of Duty: Modern Warfare from the options in the left panel.
  • Click on Options.
  • Click on Scan and Repair.
  • Start the scan by selecting the ‘Begin Scan’ option.
  • Wait for the game to finish scanning and repairing the corrupted files.
  • Once the process is complete, end the launcher.
  • Restart your PC.

9. Try Deleting Files

As mentioned earlier, corrupted, missing, or outdated files and folders may cause errors in COD: Modern Warfare. Another solution to fix the error is to delete the files from the installed directory.

Here’s how to do it:

  • Press the Ctrl+Shift+Esc keys simultaneously to open Task Manager.
  • Click on the Processes tab.
  • Click to select the mentioned task and choose End Task one after the other. [Agent, Blizzard desktop app]
  • When you are done, press the Windows + R keys simultaneously to open the Run dialogue box.
  • Type %ProgramData\ in the field and press Enter on your keyboard.
  • Locate the (Blizzard Entertainment) folder and delete it.
  • After deleting the folder, launch the client again and run the game to see if the issue is solved.

10. Set The Game’s Task Priority To High

Sometimes, Modern Warfare crashes because your PC’s operating system lacks enough resources for the game. Adjusting the game’s CPU priority settings to High can fix this issue. Here’s what you need to do:

  • First, close the Modern Warfare application.
  • Right-click the taskbar and choose the ‘Task Manager‘ option. Alternatively, you can open the Start menu, type ‘task manager’ and open it.
  • Locate the Modern Warfare process and right-click it.
  • Select the ‘Go to details‘ option. It will automatically take you to the ‘Details’ tab of Task Manager.
  • Right-click and hover your mouse cursor to ‘Set priority’, click it, and select ‘High’.
  • Launch the game.

11. Update Graphics Drivers

Sometimes when you experience errors like Dev Error 6178, you need to check to see if your graphic drivers are up to date. Using outdated graphic drivers makes the game you are playing vulnerable to crashes.

Therefore, if you’re seeing the Fatal Error Dev Error 6178 or any other error code in the Modern Warfare game, update the graphics drivers.

Here’s how to update the GPU driver from the Device Manager:

  • Open the Start Menu to search for ‘Device Manager‘.
  • Tap the option from the list provided and this will open the interface.
  • Double-click ‘Display adapters‘ to expand it.
  • Your graphics drivers will appear on your screen. Right-click your GPU or the dedicated graphics card name you use to see the next option.
  • Click on Update driver.
  • Choose Search automatically for drivers.
  • The system will start searching for available GPU drivers online.
  • Once it finds an update, it’ll automatically download it and also install it to the latest version.
  • If you have multiple GPUs, be sure to perform the steps above for each of them.
  • Restart your PC to apply the changes.

If there are no recent updates available on the computer, you can go to the official website of your graphics card manufacturer and search manually for available updates. If you find a new version, download it on your PC.

Many GPU manufacturers have an app that helps users to manage and adjust their graphics card settings. If you are using the app of your GPU manufacturer, you can use it to update your graphics card drivers. For this method, we will be showing you how to update drivers using the NVIDIA GeForce Experience app.

  • Install the NVIDIA application if you don’t have it on your device.
  • Launch the app.
  • Open an account with NVIDIA if you don’t have one. If you have an account, log in to access all the app’s features.
  • Switch to the ‘Drivers’ tab.
  • Tap the ‘Check for Updates’ option under your username.

The default Windows updater notifies you of driver updates. You can use it to update your graphics driver. You can also update the Display Drivers from Windows Update using these steps:

  • Click the Start menu.
  • Type ‘Windows update’ and open it.
  • Choose Check for updates.
  • Allow it to update. Once done, restart your PC.
  • Open the Windows updater again and search for updates.
  • Allow it to update again.
  • Once done, reboot your computer.
  • Open the Windows updater and click the ‘View optional updates’ option.
  • Select ‘Driver updates‘.
  • Checkmark any available graphics driver updates you find and click ‘Download and install’.
  • Restart your computer after installing the update.

12. Switch To Dedicated GPU

You may also want to ensure that you are using a dedicated GPU on your PC rather than using the integrated HD graphics.  

An integrated graphics card isn’t strong enough to run certain hardcore games or programs properly. Here’s how you can switch to a dedicated GPU:


  • Press the Right-click button on the desktop screen. It will open the context menu.
  • Open Radeon Settings.
  • Go to Additional Settings.
  • Go to Preferences.
  • Select Power.
  • Choose Switchable Graphics Application Settings.
  • Select Call Of Duty: Modern Warfare from the list of installed applications provided. [If you can’t find the game in the list, you can select the ‘Add Application‘ option to include the game exe file].
  • Select ‘High Performance‘ from the Graphics Settings option.
  • Reboot the computer.


  • Press the Right-click button on the desktop screen. Doing this will open the context menu.
  • Tap the Nvidia Control Panel option to open it.
  • Go to 3D Settings.
  • Select Manage 3D Settings.
  • Open the Program Settings tab.
  • Select Call Of Duty: Modern Warfare from the dropdown menu.
  • Choose the ’preferred graphics processor for this program’ option from another drop-down menu.
  • Now, your NVIDIA GPU would show as a High-Performance NVIDIA Processor.
  • Save the changes and reboot your computer.

13. Increase The Virtual Memory/Page File

Paging files or virtual memory on Windows takes a part of your hard disk and uses it as RAM. This has proved to be useful especially when you frequently run apps that take up a huge amount of RAM. So, Windows shifts some programs to the virtual memory on your hard disk to allow everything to run smoothly.

Call of Duty is one of the games and programs that relies on the Windows Page File to run smoothly. If you are not using a Page file or if your page file isn’t strong enough, you will be seeing Dev Error 6178 on COD Modern Warfare.

Your physical RAM capacity is likely reaching its working limit on the system due to the multiplicity of background tasks and foreground tasks. Therefore, we recommend you extend the virtual memory by increasing the paging file size on your computer.

Ideally, the paging file size should be greater than the actual RAM capacity for better results. Another important thing you should know about this process is that you must be logged on as an admin or be a member of the Administrators group to finish the process. If your PC is connected to a network, there is a chance the network policy settings are responsible for the issue.

Follow these steps to increase the virtual memory size or page file capacity on your PC:

  • Click on the Start menu.
  • Click on Control Panel.
  • Click on Performance and Maintenance.
  • Go to System.
  • Select Settings in the Performance section to open another window.
  • Switch to the Advanced tab. 
  • Select Change under Virtual Memory.
  • You can enable virtual memory by unchecking the ‘Automatically manage paging file size for all drives‘ box.
  • Now you can increase the paging file.
  • Click the local driver where you want to make some space for the paging file. Under Drive [Volume Label], select the drive that has the paging file you desire to change.
  • Under Paging file size for the selected drive, tap on System Managed Size and click on Set.
  • Click on Custom Size (which can be found under Paging file size for the selected drive).
  • Enter a new paging file size in megabytes in the Initial size (MB) or the Maximum size (MB) box. [Note: It should be 1.5x-2x higher than the physical RAM].
  • Click on ‘Custom Size’ and enter the amount you want. The recommended amount can be seen at the bottom of the window but if you want to increase the paging file, type an amount of 1024MB or what’s more than what’s already set.
  • After typing the amount for the initial size and maximum size respectively, click on Set and save changes. The window will close and the previous open window should show. Click ‘Apply’ and ‘OK’ and this will take you to the system properties windows that were opened. Tap ‘Apply’ and ‘OK’ as well.
  • Restart your PC to apply changes.

14. Play Modern Warfare In Windowed Mood

Many gamers, including myself, play games on Windows PC in full-screen borderless mode to get an immersive experience. However, I noticed that the fullscreen display mode can sometimes trigger multiple issues that affect the game launching and performance.

If you frequently see Dev Error or experience game crashes when running COD Modern Warfare, you should try running the game in windowed mode. Playing Modern Warfare in windowed mode significantly reduces the chances of crashing or frame drops.

Follow these steps:

  • Launch the COD: Modern Warfare game.
  • Select ‘Options’ at the bottom of the screen.
  • Switch to the ‘Graphics’ tab.
  • Search for the ‘Display Mode’ and select ‘Windowed’ from the list provided.
  • Save the changes.
  • Restart the game.

15. Turn Off Your Antivirus Program

At times, there is nothing wrong with the game or your device but the dev errors you get while playing COD Modern Warfare are triggered by the antivirus programs installed on your computer.

When an antivirus software blocks the game’s main executable file, this prevents the game from running at all. Sometimes, when any associated file is blocked, the game crashes than normal. So if you have any anti-virus program installed on your PC, make sure to disable it temporarily and see if it fixes the problem.

Here’s how to turn off Microsoft Defender Antivirus:

  • Press the Windows + I shortcut keys simultaneously to open the Windows Settings menu.
  • Click on Update & Security.
  • Click on Windows Security from the left panel.
  • Select ‘Virus & threat protection’.
  • Under the ‘Virus & threat protection settings’, select ‘Manage settings’.
  • You would see a switch next to ‘Real-time protection‘. Click the toggle to turn it off.

If Modern Warfare still shows the error, enable the antivirus and exclude the game from it. Follow the steps below to do this:

  • Open Windows Security.
  • Go to ‘Virus & threat protection‘.
  • Under the ‘Virus & threat protection’ settings, choose ‘Manage settings’.
  • Under ‘Exclusions’, click on the ‘Add or remove exclusions’ option.
  • When you get to the next screen, choose ‘Add an exclusion‘.
  • Find the Modern Warfare file.
  • Perform these steps for other executable files that you have in the Call Of Duty Modern Warfare folder.
  • Restart your PC.

If you are using any third-party antivirus software programs on your computer, try disabling it in the meantime to see if it solves the error. Many third-party antivirus apps have an option to disable them from the notification icon. If you don’t know how to do this, follow these steps:

  • Right-click the icon of your antivirus app on the taskbar. If it’s not visible enough, tap the arrow button to see it.
  • Select the disable or turn off the option.
  • Confirm if asked for confirmation.

16. Update Windows

Many programs and apps on Windows will not run or perform correctly if you are using an outdated Windows OS version. The reason is that the new update provides fixes for different bugs and errors and they also improve certain aspects of your PC.

Ensure you check for available updates for Windows and install them. You should know that using an outdated system version can cause multiple issues and affect the running and performance d your system. Installing new updates can help fix errors and prevent game crashes.

That said, here’s how to check and install Windows updates:

  • Press the Windows + I shortcut keys simultaneously to open the Windows Settings menu.
  • Click on Windows Update.
  • Click on Check for updates from the left panel.
  • Click on Advanced Options.
  • Scroll down the screen and locate the Additional Options section.
  • Click on Optional updates.
  • The system will search for updates. When it finds an available update, ensure to select it.
  • When you see a new update, click on Download and Install.
  • Wait until the process is complete.
  • Once done, reboot the PC to apply the changes. Then run the Modern Warfare application again.

Follow the above steps as it is to ensure there is no security patch update or pending driver update for your computer.

17. Disable Windows Firewall

Turning off the Windows Firewall program on your computer can help prevent any kind of blocking issues. Windows Firewall may block all ongoing connections and prevent the game files from running correctly.

Here are the steps to disable Windows firewall:

  • Click on the Start Menu.
  • Type Firewall.
  • Select Windows Defender Firewall from the results provided.
  • From the left panel, click on Turn Windows Defender Firewall.
  • Choose the ‘Turn off Windows Defender Firewall (not recommended)‘ option for both the Private & Public Network Settings.
  • Once done, click on OK to save changes.
  • Restart your computer.

18. Perform a Clean Boot

While using your PC, your system may not notify you of certain third-party apps that may be running in the background. It is likely your system resources are consumed when many of these programs are running at the same time.

Performing a clean boot can help remove all the unnecessary background running tasks on your computer. Another benefit of running a clean boot is that it enhances your system performance,

Here’s how to do this:

  • Press the Windows + R shortcut keys simultaneously to open the Run dialog box.
  • Type msconfig and hit the Enter key to open System Configuration.
  • Go to the Services tab.
  • Enable the Hide all Microsoft services checkbox.
  • Click on Disable All.
  • Click on Apply and click OK to save changes.
  • Hover to the Startup tab.
  • Click on Open Task Manager.
  • Select the Startup tab from Task Manager.
  • Look for the task with a higher startup impact.
  • Once you find it, click on ‘Disable’ to turn it off. [Follow the same steps for each program with a higher startup impact].
  • Restart your PC to apply changes.

19. Update Call of Duty: Modern Warfare

If you are seeing errors like Dev 6178 on your screen while playing Modern Warfare, you may have to check for available game updates. Perhaps, you are running an outdated game version, which is no longer compatible with your device.

Installing a new update or version on your computer can help improve the performance and fix bugs. Here’s how to do this:

  • Open the (Blizzard) launcher.
  • From the top left area of the screen, tap the Blizzard logo.
  • Go to ‘Settings’.
  • Click on ‘Game Install/Update’.
  • Scroll to the bottom of the screen and select the ‘Apply latest updates and download future patch data for recently played games‘ option to enable or checkmark it.
  • Click on ‘Done’ to save changes.
  • Restart the launcher.

This process should update all your installed games automatically including Call of Duty Modern Warfare (if available).

20. Reinstall The Game

If you have tried out different methods to fix Dev Error 6178, the penultimate option would be to uninstall the game and reinstall it. Most times, uninstalling and reinstalling an application can help set things afresh and fix any problem. It can be painful to uninstall Modern Warfare and lose your saved game data.  

If you already have a DVD of the game or the setup files on your hard drive, follow the steps below to uninstall and reinstall the Modern Warfare:

  • Open the Start menu, add or remove programs, and run the application.
  • Locate the Call of Duty Modern Warfare program and uninstall it.
  • Restart your computer.
  • Install the Call of Duty Modern Warfare game from the setup file on your hard drive, or DVD, or download it directly from Activision.

If you got the game from the application, see the steps below:

  • Open the app.
  • Go to Call of Duty Modern Warfare.
  • Click the drop-down arrow icon next to the play button.
  • Select the ‘Uninstall’ option.
  • Restart your computer.
  • Open and go to COD: Modern Warfare.
  • Install the game.
  • It will take some time for it to install depending on factors like your internet speed, performance, and storage space of your device.
  • Once done, launch the game and check if the Dev Error 6178 shows up.

Follow this process if you are playing Call of Duty Modern Warfare on Steam and other platforms.

21. Contact Activision Support

If all of the solutions and methods we provided don’t fix the problem, the last thing you can do is contact Activision for assistance. Activision has a support page where you can create a ticket, get in touch with the company’s representatives, and get help on any issue or problem you are battling with.

Disclosing your problem will make the game developers look into the issue and find an effective solution for you. Sometimes, after investigating and studying the problem, the game developers release patch updates to fix some of the bugs, issues, and problems faced by players.

Frequently Asked Questions (FAQs)

What Does Dev Error Mean?

When you see a Dev Error while running a program or application, it means that there is an issue or error that prevents the program from running smoothly. Some Dev Errors come with digits to help trace the origin of the problem.

You may have seen errors like 6068, 6036, 6065, and 6178 on Modern Warfare. The Dev Error 6068 for instance is more connected to the graphics adapter or settings.

Why Do I Keep Getting Dev Errors On Call of Duty MW?

There are various reasons why you are seeing Dev Errors while playing Call of Duty. The errors could be as a result of any of the following reasons:

  • Outdated graphics card.
  • When the paging file or virtual memory is not set or is low.
  • Corrupted game files.
  • Missing game files.
  • V-Sync and G-Sync are turned on.
  • When the Texture Resolution on the game’s graphics options is set to ‘Low’.

What Is The Cause of Dev Error Warzone?

Below are some of the causes of Dev Error on Warzone:

  • In-game overlay programs such as Discord Overlay, NVIDIA Highlights, etc are turned on.
  • The game lacks admin privileges.
  • The game runs on high graphics.
  • V-Sync is enabled.
  • Warzone game files are corrupted.
  • Outdated GPU drivers.

How Can I Fix Dev Errors in COD Modern Warfare?

Some of the ways to fix Dev Errors on Modern Warfare include:

  • Disable the game overlay settings and other overlay programs.
  • Run the game executable file as an administrator.
  • Scan and repair the corrupted game files.
  • Disable V-Sync from the game settings.
  • Set the process priority of the game to high from the Task Manager.
  • Increase virtual memory.


Using the solutions provided in this troubleshooting guide, you should be able to fix the Fatal Error 6178. Many people playing Modern Warfare and Warzone have successfully resolved this error by applying the methods we provided here.

If the error persists after trying these solutions, the last resort is to contact Activision or support. Hopefully, the team can help find the exact cause of the error and be in a better position to fix the problem. All you need to do is to provide them with the necessary details and don’t try to amplify or exaggerate.

If you are experiencing performance issues after fixing the Dev Errors in Modern Warfare, you may want to find the best settings for high frame rate and optimal performance. If yes, you need to see this post on How To Get High FPS In Call of Duty.

Scroll to Top