# URP Post-processing: Volume component has no profile assigned. Effects will not be applied.

- **ID:** `unity/urp-post-processing-volume-missing-profile`
- **Domain:** unity
- **Category:** config_error
- **Verification:** ai_generated
- **Fix Rate:** 98%

## Root Cause

A Volume component in the scene is missing a VolumeProfile asset, so post-processing effects are disabled.

## Version Compatibility

| Version | Status | Introduced | Deprecated |
|---------|--------|------------|------------|
| Unity 2021.3.0f1 with URP 12.0 | active | — | — |
| Unity 2022.3.0f1 with URP 14.0 | active | — | — |
| Unity 2023.2.0f1 with URP 16.0 | active | — | — |

## Workarounds

1. **Assign a VolumeProfile to the Volume component: Create a new VolumeProfile via Assets -> Create -> Volume Profile, then drag it into the Profile field of the Volume component. Alternatively, use this script: volume.profile = Resources.Load<VolumeProfile>("MyProfile");** (98% success)
   ```
   Assign a VolumeProfile to the Volume component: Create a new VolumeProfile via Assets -> Create -> Volume Profile, then drag it into the Profile field of the Volume component. Alternatively, use this script: volume.profile = Resources.Load<VolumeProfile>("MyProfile");
   ```
2. **If no effects are needed, disable the Volume component entirely by unchecking its enabled checkbox in the Inspector.** (95% success)
   ```
   If no effects are needed, disable the Volume component entirely by unchecking its enabled checkbox in the Inspector.
   ```

## Dead Ends

- **Reimport URP package from Package Manager** — Reimporting does not assign a profile to existing Volume components; profiles must be created or assigned manually. (95% fail)
- **Enable post-processing in URP Asset settings** — This enables the renderer feature but does not fix missing volume profiles. (85% fail)