{quote}https://forum.unity.com/threads/generateauthoringcomponent-currently-broken-in-0-51-entities.1296327/{quote}
{quote}When using Unity LTS21 and Entities 0.51, even making a Tag `IComponentData`, `GenerateAuthoringComponent` crashes the DOTS compiler and shows roughly this in the error log:

Code (txt):
#
error SGICE004: 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 '\{ProjectPath}\Temp\GeneratedCode\Assembly-CSharp' because a file or directory with the same name already exists.
Example code that breaks the compiler:

Code (CSharp):
#
using Unity.Entities;
#
 
#
[GenerateAuthoringComponent]
#
public struct PlayerTag :IComponentData \{ }
 {quote}