Can't make builds since updating to 2021.1.6f1

[RoughSpaghetti3211]

I see Entities package in you manifest. You might want to consider downgrading to unity 2020 because of entities compatibility.

Notice on DOTS compatibility with Unity 2021.1

Hi! With the release of Unity 2021.1, DOTS is at a crossroads in terms of compatibility with the currently available Unity versions. While certain parts of the DOTS ecosystem (Burst, Jobs, Math, Collections) are compatible with the 2021.1 TECH stream, other packages such as the entire entities suite is not. For your projects there are now two upgrade scenarios depending on your use of DOTS packages. Scenario A - My project is not using entities based packages You will find that the Burst pa…