How can I fix this issue when starting a Unity project? - unity3d

Recently I updated Unity from version 2020.1.0b6 to 2020.1.16f1, but after starting the project, I started getting errors, and all two versions, I tried to reinstall, nothing helps. Below are links to screenshots
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Please open Package Manager from Window/Package Manager on the menu.
There, you will be able to find packages that are related to the issues.
And please try to remove or update the packages.
If it's possible, would you share a screenshot of your Package Manager?

Related

"Unable to create project" error given right after install

I previously had Unity Hub around a year ago and uninstalled it. I went and deleted the old directory in the Program Files folder and then installed the newest version of Unity Hub. When I launched it, the old directory that I used to use for my old projects was already in the box. When I tried to create the project, it said "Unable to create project". Is there some other thing I'm supposed to delete also? I don't know where the old version used to save that kind of information, but I think it has to be deleted for the newer one to work. Unfortunately, I don't remember what version I had before. Any help would be great. Thanks
You should never delete software's files without uninstalling them. Try to uninstall Unity Hub with the apposite feature and re-install the latest version.

Unity 3d error while opening the editor. Probably an error in the package manager

I am facing a problem with unity 3d editor. The issue is in both the versions of the Editor that I have downloaded being 2021 version and 2019.4 version. It occurs whenever I create and load up a new project in the unity editor.I have made no changes in the script or the scene so it is probably a problem with the packages. The module I have downloaded is the android build support and windows build support. Moreover I do not get any error message. I am attaching a screenshot. Please check the screenshot and please see what is the problem. Please help is you can. I will be very thankfulPlease see the picture and Help

how to switch platforms in unity?

hiii i am new to unity, and i want to switch my platform to android. but, the problem is, when i click the android in build settings, it says "no android module loaded". and when i click to install with unity hub, it says "the unity version 2019.4.13f1 is already located by the hub. You cannot add modules to a located hub". how to resolve this issue ?? and i have also tried installing unity installer and when the downloading completes, it says "failed to locate unity.exe".... can someone pls help me with this.. I am trying this since past few days, and it has become annoying :(.. plssss somebody helpp.....
You should try this post:
Can't add modules to installed Unity editors
It says no reinstall required. But I would try that next.
It cannot hurt to read this as well:
https://docs.unity3d.com/Manual/android-sdksetup.html

error CS0234: The type or namespace name `iOS' does not exist in the namespace `UnityEditor'. Are you missing an assembly reference?

I have installed the latest versions of Unity (2017.3.1), Daydream SDKs (GVR SDK for Unity v1.130.0) and followed the steps here: https://developers.google.com/vr/develop/unity/get-started#configure_build_settings_and_player_settings
However when I press Play I get the following error, ideas on what is the reason & how to fix it?
Assets/GoogleVR/Editor/GvrBuildProcessor.cs(20,19): error CS0234: The type or namespace name 'iOS' does not exist in the namespace 'UnityEditor'. Are you missing an assembly reference?
Edit: Issue fixed after a few hours of submission on GitHub with the release of GVR SDK for Unity v1.130.1
If you're facing with this problem there are 2 steps to solve it:
Make sure that "iOS Build Support" is checked in Unity Hub -> Installs as Adam mentioned (if U're developing for iOS platform then this option most definitely is already checked).
Place your script in Assets -> Editor folder. UnityEditor.iOS.Xcode namespace cannot be used in your main project. It works only in special Assembly-CSharp-Editor project intended to modify native Xcode project. (That's the option that worked for me after searching a ton of forums).
The Official Solution:
https://forum.unity.com/threads/unityeditor-ios-xcode-ios-namespace-doesnt-exist.365381/
Step by step I did:
Figure 1 shows the Unity Download Assistent installation file that should be run.
Figure 2 shows the "iOS Build Support" option that should be checked for installation.
I went ahead and changed the "Current Platform" to "iOS" in Unity Hub, This is a quick fix and it works now.
Change "Current Platform" to iOS Image:
If you have installed IOS build through unity hub while the project is open, try restarting Unity Hub and Unity Editor. This solved my issue.
I met this issue When useing unity-arkit-plugin to develop something, i did nothing but import this plugin it throw this error .
And after i installed UnitySetup-IOS-Support-for-Editor-2017.3.0f3.pkg ,the issue fixed.
This usually happens when iOS Build Support is not installed in Unity Hub

Unable to update eclipse because of conflicting dependency

I've taken a screen shot of the problem for your convenience. It doesn't let me upload it here because I'm a new user. so here's the link: http://s9.postimage.org/9bmz08snj/Screenshot_at_2012_01_30_15_18_07.png
I'm having trouble updating Eclipse. This happened after installing the android sdk and the ADT plugin. I am unable to do any of these individually. Any help is appreciated. Thanks.
Did you see the linux notes on this page: http://developer.android.com/sdk/installing.html
Just wanted to make sure.