The Call of Duty: Modern Warfare is widely considered to be one of the best-in-class and realistic FPS games ever released. Despite its magnificence, the game has its fair share of issues. A large number of Call of Duty: Modern Warfare users have been experiencing the Dev Error 6178 issue on the PC randomly while launching the game.
The Fatal Error Dev Error 6178 error appears and the game crashes during the loading of the map on the PC. The error could also happen when the camera returns to the player after death. In this guide, you’ll get to know how you can fix the Call of Duty: Modern Warfare Dev Error 6178.
Method 1: Run the game as an admin
- Right-click the game icon on the desktop before choosing “Properties”
- If you’re using a client like Steam or Battle.net, right-click its icon and then select “Properties”
- Head over to the Compatibility tab
- Checkmark the box next to the “Run this program as an administrator” option
- Click on Apply before selecting OK
Method 2: Disable NVIDIA highlights from in-game settings
- Launch Call of Duty: Modern Warfare
- Choose the “Options” button located at the bottom of the screen
- Head over to the “Graphics” tab
- Find NVIDIA Highlights and then disable it
Method 3: Disable V-sync from the Modern Warfare settings
- Open the game and head over to “Options” at the bottom of the screen
- Switch over to the “Graphics” tab
- Disable “Sync Every Frame” or V-sync
Method 4: Disable in-game overlay from the NVIDIA GeForce Application
The in-game overlay option in the NVIDIA GeForce Experience application is enabled by default. Use the following steps for disabling it –
- Turn off the COD: Modern Warfare game
- Launch the NVIDIA GeForce Experience desktop client
- Head over to the Settings icon at the top
- In the “General” tab, you’ll find the “In-game overlay” switch, which you should turn off
- Save the configuration before closing the app
- Restart your PC
Method 5: Close any unwanted programs when running the game
- Right-click the taskbar before selecting “Task Manager” and you’ll get a list of programs running
- Right-click the unwanted program and then select “End task”
- Now, do the same thing for all the unnecessary programs on this list
- Try to run the game now
Method 6: Turn off the Discord overlay
With Discord Overlay, you’ll be able to text and voice chat when playing a game. If the game is crashing, you should try to play the game by disabling the Discord overlay.
- Open Discord
- At the bottom of the screen, you should select the Settings cogwheel icon next to the username
- From the left pane, you should over to “Game Overlay”
- Switch off “Enable in-game overlay”
- Restart your PC
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