Can't find Barracuda package in Unity Registry - unity3d

Following the instructions here in the "Unity Package Manager" section, I'm unable to find the Barracuda package in the Unity Registry. Could someone shed some light on how Barracuda package is meant to be installed? Thanks!
I do have Preview Packages enabled, as you can see some preview packages listed in the Unity Registry in the screenshot below.

According to this forum post, Unity versions since 2020 not only hide preview packages by default but for some, they are completely unsearchable and must be manually fetched. For Barracuda:
Open Package Manager
Click the plus sign in top left corner > Add package from Git URL...
Input com.unity.barracuda into the text field

Related

"Unable to create project" error in Unity hub 3.1.2

I've been having some issues with Unity so I installed the latest hub but now I can't create any new projects and I don't know what to do. Does anyone know how I can solve this?
Here is what happens when I try to create a new project
Check the version on the top, this happened to me when I uninstalled the editor and installed a previous version. There's a drop down menu where you can select the correct editor version.
This is a path issue. All paths should be select.
enter image description here
In macos it is for permissions, I solved it by following these two tutorials
Enable root user
https://www.maketecheasier.com/enable-root-user-mac/
Execute Unity Hub as root user
https://es.wikihow.com/abrir-aplicaciones-con-privilegios-de-ra%C3%ADz-en-una-Mac#:~:text=Es%20posible%20abrir%20cualquier%20aplicaci%C3%B3n,a%20la%20aplicaci%C3%B3n%20o%20computadora.
When the editor is installed in a non-C drive, the editor has no right to create objects in any path
Unistall Unity Editor and install it in C:*
https://forum.unity.com/threads/if-unity-hub-didnt-be-installed-in-c-you-cannot-create-project.1375554/
report bug

unity 3d's package manager is not showing ProGrids module

In unity's package manager the proGrids module is not visible
I installed proBuilder but the proGrid module is not showing up
Unity version-- 2021.1.1f1
If you want any more info please ask
THANKS!!
Apparently even though it is (currently?) not appearing in the packages you can still install it via (Source)
Update: in the newest versions the option Add package by name is removed and instead you enter the exact same thing into Add package from git URL
ProGrids is a preview package so you need to check Enable Preview Packages in the Package Manager Project Settings
ProGrids on unity 2021.1.22f1 is still experimental. I don't know if this is safe to use or not. ProGrids Unity 2021.1.22f1

How to download Unity dots (entity package) with unity 2020.3 LTS?

I decided to try out the new unity dots system, or, the new entities package (as well as the hybrid renderer), but I can't find the package in the package manager with preview packages enabled. After looking it up, I could not find any resources, other than one that told me that they moved some of the preview packages out of the package manager, and somewhere else. Does anyone have any idea where it could be?
This is what it looks like on my screen by the way:
From Entity Component System - DOTS Project Setup
Starting with Unity 2020.1, the DOTS packages are not listed in the package manager, even when preview packages are enabled. There are two alternative options to install those packages:
You can use "Add package from git URL..." under the + menu at the top left of the package manager to add packages either by name (such as com.unity.entities), or by git URL (but this option isn't available for DOTS packages). Note that it might take a few moments before the package starts installing.
Alternatively, you can add DOTS packages by directly editing the Packages\manifest.json file in your project. This file requires not only the package name but also a version which can be found by looking at the documentation of each package (such as "com.unity.entities" : "x.x.x-preview.x").
For example currently it would be com.unity.entities" : "0.17.0-preview.41"
And
Follow the link for more information about installing hidden packages.
Maybe also interesting for you:
The recommended set of core packages to be added to a DOTS project is:
com.unity.entities
com.unity.rendering.hybrid
com.unity.dots.editor

Unity 2020.1.10f1 Package Manager Won't Open

I was working on one of my projects and meanwhile, I wanted to download a package and I noticed that the Package Manager would not open. I read forums written to have the com.unity.package-manager-ui in the manifest.json file, I didn't have it. Once I put it in, I became aware of 600 error messages. Then I checked your official unity project on GitHub but there was no package-manager there either. I reinstalled Unity and Unity Hub, but it still didn't open and my manifest file didn't include package-manager-ui either. If anyone could help solve the problem I would be very grateful!

The type or namespace name `PostProcessing' does not exist in the namespace `UnityEngine.Rendering'

Do someone know how to fix this? I got this error after importing Cinemachine from the Unity Asset Store. I'm using Unity 2018.1.0f2 and have no problems with 2017.3.1f1
Error
The type or namespace name PostProcessing does not exist in the namespace UnityEngine.Rendering
Using Unity 2018.2 --
Go to Window>Package Manager
Click on the All tab
Find Postprossessing and import
Find Cinemachine and import
here's something that should work - it worked for me!
go to window > package manager. search for postprocessing and click install. wait for it to download. close package manager. DONE!
The Way I found to Fix This Error is This:
1. go to Window -> package manager
2. select post-processing
3. click on version and select old version
4. click Up to date