> For the complete documentation index, see [llms.txt](https://reallyrich.gitbook.io/untitled/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://reallyrich.gitbook.io/untitled/common-issues-fixes/dev-error-6456-6067-6068.md).

# Dev Error (6456, 6067, 6068)

This page will help fix the above dev errors when injecting.

* Disable ALL overlays (Discord, Geforce, Medal, Radeon, etc)
* Disable Secure Boot
* Ensure your game is either in Fullscreen Windowed or Windowed
* Uninstall all [Visual C++ Redistributables](#user-content-fn-1)[^1] and reinstall them
* Stay tabbed into the game throughout injection (focused)
* Inject at the character walking screen, not the main menu (you may try injecting at the main menu if the character walking screen does not work)
* Be sure all of the[ step-by-step guide](https://reallyrich.gitbook.io/untitled/setup-guide/1.-virtualization)[ ](https://reallyrich.gitbook.io/untitled/setup-guide/1.-virtualization)has been followed.

[^1]: <https://reallyrich.gitbook.io/untitled/setup-guide/8.-c++-redistributables>