com.unity.transport is broken upon import?

Hey,

I have a fresh project to try out some of the unity netcode and ECS stuff, i'm using unity version 2019.3.13f1.

I tried to import entities, hybrid renderer but when i import unity netcode package, i get this error;

Library\PackageCache\com.unity.transport@0.3.0-preview.6\Runtime\IPCManager.cs(79,44): error CS1061: 'NativeHashMap<ushort, int>' does not contain a definition for 'Length' and no accessible extension method 'Length' accepting a first argument of type 'NativeHashMap<ushort, int>' could be found (are you missing a using directive or an assembly reference?)

I tried a new fresh project and i made sure all packages are up to date, the transport package is up to date.

There is zero info about this when i try googling, any help as it completely halts anything i do right now

 

https://github.com/Unity-Technologies/multiplayer/issues/92

 

same