Steps to reproduce:

1. Create a new project or open any of the ECS Samples from here
2. Open the Package Manager
3. Find the Entities package and upgrade it to 0.50.1-preview.2 if upgrading or add it by name from com.unity.entities

Expected result: everything is imported without issues

Actual result: the following error is logged

Library\PackageCache\com.unity.entities@0.50.1-preview.2\Unity.Entities\RetainBlobAssetSystem.cs(6,5): error SGICE002: Seeing this error indicates a bug in the dots compiler. We'd appreciate a bug report (About->Report a Bug...). Thnx! <3 System.IO.IOException: Cannot create 'C:\Projects\EntityComponentSystemSamples\ECSSamples\Library\Bee\artifacts\1900b0aEDbg.dag\Unity.Entities.AdditionalFile.txt' because a file or directory with the same name already exists.

Reproducible with: 2021.3.4f1

Not reproducible with: 2020.3.35f1, 2022.1.3f1

2021.2 and 2021.1 are not applicable to issues on this version of ECS. Reference the chart here.

Platform: Windows