> ## Documentation Index
> Fetch the complete documentation index at: https://docs.rageon.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Checker

> Read the errors and warnings the Checker raises for an emergency vehicle before you export.

The **Checker** is the last section of the **Emergency vehicle sheet**. **Errors block the export. Warnings do not.** The section shows a badge with the count of errors and of warnings, or **Ready to export** when there is nothing to report.

![Checker listing an error about a part that is not in the kit, with a Remove button](https://mintcdn.com/rageon/TCzaS11pSGz1CPPK/images/vehicles/evs-checker-errors.webp?fit=max\&auto=format\&n=TCzaS11pSGz1CPPK\&q=85\&s=b26f310084974437f4b589d6adddee2b)

The Checker with an error and a Remove button.

Each row has a ✕ for an error or a ▲ for a warning, and some rows have a button that fixes it: **Remove** deletes an unavailable part, extra, or lightbar, and **Turn off** switches off a light that has no bone. Remove unsupported handling fields in **Handling**. The export runs the same checks again. A blocked export says **Export blocked: …** and lists the errors.

## Errors

| Message | What to do |
| - | - |
| Use a spawn name of 3 to 16 characters, starting with a lowercase letter, followed by lowercase letters, numbers or \_. | Fix **Spawn name**. |
| Fill in the in-game name. | Fill **In-game name**. |
| The model "…" already exists in the GTA sources. Choose another spawn name. | Use another spawn name. The export also says where the model was found. |
| Another emergency vehicle already uses the model "…". "…" repeats the entry for the same model. | Change the spawn name of one of the two, or delete one. |
| Emergency vehicles and Texturing write the same "….yft". Remove the lightbars or the Texturing edit for this model. | Keep either the lightbars or the Texturing edit. |
| Lightbar "…" is not in the installed catalog. | Click **Remove** on the lightbar. |
| The lightbar "…" needs a free slot from 1 to 20 per light, without repeating stock bones or other lightbars. | Remove the lightbar and add it again. |
| The model "…" of "…" doesn't open in the GTA sources. | Check the game sources in **Settings**. Wait if they are still loading; restore the base mod if it is missing. A read failure can also cause this error. |
| The part "…" of "…" is not in the … kit. | Click **Remove**. |
| The model "…" has no modification kit for the part "…" of …. | Click **Remove**. |
| The stock handling of "…" doesn't have the field "…" that "…" changes. | Click **Remove** in the red group of **Handling**. |

## Warnings

| Message | What to do |
| - | - |
| The emergency vehicle "…" is empty and is left out of the export. | Change something in the vehicle, or delete it. |
| The Texturing livery is on the base model "…" and doesn't follow "…". | The livery stays on the base car. A **New model** cannot export with a Texturing livery targeting its own spawn name. See [Liveries](/projects/emergency-vehicles/overview.md#liveries). |
| The lightbar "…" is more than 0.5 m from the car's box. Check the position. | Move the lightbar closer to the car. |
| Couldn't check the model of "…": the GTA sources aren't ready yet. | Wait for the game files to finish loading. |
| Extra … of "…" is not in the skeleton and is left out of the section. | Click **Remove**. |
| The model "…" has no siren bones. | Add a [lightbar](/projects/emergency-vehicles/lightbars.md), or leave the sirens as **Stock**. |
| Light … of "…" doesn't have the bone siren…. | Click **Turn off**. |
| The handling of "…" is also used by: …. Changes to it apply to those models. | Accept it, or use **New model**. See [Handling](/projects/emergency-vehicles/handling.md). |

## Troubleshooting

> **Export blocked: …**
>
> Open the vehicle and fix the errors listed in the Checker. Messages that name a model, such as a vehicle whose model is not in the GTA sources, point at the car's base files.


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