How to Fix ERR_FIL_PACK_1 Error in GTA V

The “ERR_FIL_PACK_1” error in Grand Theft Auto V usually pops up when the game can't load internal pack files during startup. Since GTA V stores textures, models, and other assets inside large .rpf archives there are major issues when these files become corrupted, exceed internal limits, or are modified incorrectly. Most of the time this only happens when you've modded the game, however there are reasons as well so follow along as we should you the most common fixes.

How to Fix ERR_FIL_PACK_1 Error in GTA V

This issue is almost always linked to modded game files, and usually happens after game updates, when mod dependencies become outdated, or when too many custom files push the engine beyond its loading limits. This is quite a common problem so there are plenty of working solutions so work your way through them below.

Disable Mods and Launch the Game

Before trying any of the more complicated fixes, check if mods are the cause. GTA V loads modifications from multiple sources, so a partial disable may not be enough.

• Open your GTA V installation folder where GTA5.exe is located.
• Move dinput8.dll out of the folder, as it acts as the ASI loader.

• Rename the mods folder if it exists, for example to mods_OFF.
• Also remove or temporarily relocate files like ScriptHookV.dll, OpenIV.asi, and any other .asi plugins.
• Now start the game. If it starts normally, a mod or plugin is responsible.
• Finally, add files back one by one until the issue reappears to find the conflict.

Update Script Hook V and Dependencies

After updates to GTA V, mod tools are the number 1 cause of ERR_FIL_PACK_1. So you need to make sure you are using the latest version of Script Hook V that matches your game build.

• If the game was updated recently, you may need to wait for a compatible release.
• If you are using another mod source and mods make sure they are updated.
• Large mod setups can also exceed the game’s internal packfile limit.
• Installing a Packfile Limit Adjuster removes this restriction and allows the game to load more archives without crashing.
• Make sure the adjuster is placed in the root folder and that dinput8.dll is present so it can function.

Another critical file is gameconfig.xml, which is located in the mods folder path under update.rpf. This file controls how the game handles memory and asset limits. If you are using a version that doesn't match your current GTA V won't launch properly, either crashing to the desktop or throwing up an error message.

Verify Game Files

If the error ahppens and you aren't using mods or keeps happening after updating mods, the base game files may be the problem. If you have recently removed all of the mods you have installed you should do this as well.

• On Steam, open your Library, access GTA V properties, and run the file verification tool.
• On Epic Games Launcher, use the Verify option under the game’s management settings.
• If you are using the Rockstar Games Launcher, the same option is available under installed games.

Note: Keep in mind that this process may overwrite modified files. So you'll probably need to reinstall them all.