Some package directories are not found, and errors are thrown in the Console when the project path is quite long

Unity: Packman

6.3.X

6.2.X

6.1.X

6.0.X

2022.3.X

This is essentially a feature request to add support for long file paths on Windows. I will forward this as a formal request.

How to reproduce:
1. Open the “workspaces.zip“ project
2. Observe the Console

Expected result: Nothing is thrown in the Console
Actual result: Multiple package errors are thrown in the Console

Reproducible in: 2022.1.0a1, 2022.3.64f1, 6000.0.53f1, 6000.1.11f1, 6000.2.0b9, 6000.3.0a1

Reproduced on: Windows 11 Pro (24H2)
Not reproduced on: macOS 15.3 (M2), No other environment tested

Notes:

HDRP package files have longer paths in Unity 6 (observed by the user), which leave less project path margin to work with, without causing this issue
Types of errors thrown:
-> “DirectoryNotFoundException”
-> “DllNotFoundException”
-> “Error detecting Visual Studio installations”
-> “Asset import failed”
-> etc.