How to reproduce:
1. Create a new project
2. Open the Package Manager (Window → Package Management → Package Manager)
3. Install the HDRP (com.unity.render-pipelines.high-definition), URP (com.unity.render-pipelines.universal) and Cinemachine (com.unity.cinemachine) packages
4. Observe the console

Actual result: Cinemachine package throws errors to console
Expected result: No errors are thrown to console

Reproducible with: 3.1.5 (2023.1.0a10, 6000.0.67f1, 6000.3.8f1, 6000.4.0b8, 6000.5.0a6)
Not reproducible with: 3.1.4 (6000.5.0a6)

Reproducible on: Windows 11
Not reproducible on: No other environments tested

Notes:
- Does not reproduce if only either HDRP or URP is installed, but not both
- Error messages are:
”Library\PackageCache\com.unity.cinemachine@5342685532bb\Runtime\PostProcessing\CinemachineVolumeSettings.cs(212,37): error CS1061: 'DepthOfField' does not contain a definition for 'aperture' and no accessible extension method 'aperture' accepting a first argument of type 'DepthOfField' could be found (are you missing a using directive or an assembly reference?)”
”Library\PackageCache\com.unity.cinemachine@5342685532bb\Runtime\PostProcessing\CinemachineVolumeSettings.cs(212,61): error CS1061: 'DepthOfField' does not contain a definition for 'aperture' and no accessible extension method 'aperture' accepting a first argument of type 'DepthOfField' could be found (are you missing a using directive or an assembly reference?)”
”Library\PackageCache\com.unity.cinemachine@5342685532bb\Runtime\PostProcessing\CinemachineVolumeSettings.cs(213,37): error CS1061: 'DepthOfField' does not contain a definition for 'focalLength' and no accessible extension method 'focalLength' accepting a first argument of type 'DepthOfField' could be found (are you missing a using directive or an assembly reference?)”
”Library\PackageCache\com.unity.cinemachine@5342685532bb\Runtime\PostProcessing\CinemachineVolumeSettings.cs(213,64): error CS1061: 'DepthOfField' does not contain a definition for 'focalLength' and no accessible extension method 'focalLength' accepting a first argument of type 'DepthOfField' could be found (are you missing a using directive or an assembly reference?)”