# Common Errors

## A**ttempt to index a nil value (upvalue '?')** or **attempt to index a nil value (global 'ESX')**

**Make sure you set your config correctly.**

```lua
-- This is right
Config.Framework = "esx" -- if using ESX
Config.Framework = "qb" -- if using QBCore

-- this is WRONG
Config.Framework = esx
Config.Framework = " esx"
Config.Framework = "ESX"
```

{% hint style="danger" %}
If you are using the esx framework, do not forget to uncomment the esx import in the `fxmanifest.lua`

![](https://cdn.p33t.net/HKBMAVDMAV.png)
{% endhint %}

***

## Attempt to call a nil value (field 'StartMenu')

Check if [ox\_lib ](https://github.com/overextended/ox_lib/)is correctly installed. If you are unsure, install it again from [this link](https://github.com/overextended/ox_lib/releases/latest/download/ox_lib.zip)

If you are still experiencing issues, make sure ox\_lib is started before our script

***

## Still experiencing issues? Join our [Discord server](https://discord.gg/verse-scripts)

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