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
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I have a problem in development of mixed reality app and there has been 2 days that I'm stuck.
My problem is that after adding packages of MRTK to the unity project, if I click the play button, the unity exits (closing) without any error massages or warning.
I tested two versions of unity (2020.3.32f1 and 2020.3.33f1) and both had the same problem.
I am using this link (MRTK document) and also this one Mixed Reality Feature Tool as a guide for configuration and adding the packages of MRTK to my project.
I have also tried two different versions of the packages i.e. (Mixed Reality Toolkit Foundation and Mixed Reality Toolkit Extensions both versions of 2.7.3 and 2.7.2 and for Mixed Reality OpenXR Plugin package I tried 1.4.0 and 1.3.1 versions).
I am using Visual Studio 2019 version 16.11.14
Inside Unity, I am choosing Universal Windows Platform from the Build Settings and I want to practice a little development of mixed reality applications, but I am stuck at the beginning and when ever I press the play button the unity exits (closed) without any warning or error.
Just for more information → I don't have Microsoft Hololens2, therefor I am considering to use Windows Mixed Reality simulator (Mixed Reality Portal).
I can't get what mistakes I am doing, please if you have any idea help me.
Thanks in advance.
There are many steps to configure a Unity Project for Mixed Reality. According to the description, it is hard to determine which step causes the issue. I have created a repository which is implemented with the necessary MR packages, and the configuration has been done. Feel free to pull the repo from https://github.com/sethdu0525/MR-Blank-Project. Please open it and click run to test.
If you still have this issue, you may need to have a clean installation of Unity 2020.3.33f1 (LTS), Visual Studio 2022 and make sure all the required components have been installed, including a comparatively new Windows SDK.
If you have a dump file for the crash, you may also share it and find support from Unity forum -- General Discussion - Unity Forum
When I launch a project via Unity Hub, the following message is printed : Unity is already in list. You cannot locate the same version.
unity hub error
And when I want to access my project via Assets -> Scenes.
I get this : error message
If I said "continue", my project is broken with a lot of errors to fix.
Have you a solution ?
Thanks
From what I see in your screenshot, you are trying to open a project with an older unity version than the project's version. As it is written in the message, the operation is not supported and you should open it with at least the same version, or an older one. Make sure you have such a version installed in Unity Hub and to open the scene with this version.
You can still try to get everything to work by reimporting all you assets in Assets -> Reimport All but this will probably fail.
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
I opened Unity for the first time in a while today and I'm unable to create new scripts of any type. Both the normal and right click menus are missing the option:
Adding a script through the inspector creates a file, but yields these errors:
Although the file is created, it does not appear in either the project browser, or inspector panels.
Googling various parts of these errors actually gets a lot of posts, but almost all of them come down to "restart Unity", which isn't doing anything.
All of this is reproducible for me on a fresh project file. I've tried restarting Unity and my computer, as well as reinstalling Unity from scratch. I've also double checked that I have .NET installed properly (reinstalled, and dotnet command works in terminal).
Unity: 5.4.5p5
Mac OS 10.13.3
This is a bug present in versions between Unity 5.1 and 5.4. It has been fixed in Unity 5.5.0 and an update to 5.5.0 and above should fix it.
If updating to Unity 5.5.0 which has the fix did not fix it then it's better to upgrade Unity to the latest version which is currently Unity 2017.4 at the time of posting this answer. This version should be able to get ride of that error.
I'm trying to build Unity application for Hololens device on Visual Studio 2017 and I'm getting the following errors:
Metadata file '...\GeneratedProjects\UWP\Assembly-CSharp-firstpass\bin\x86\Release\Assembly-CSharp-firstpass.dll' could not be found
Metadata file '...\GeneratedProjects\UWP\Assembly-CSharp\bin\x86\Release\Assembly-CSharp.dll'
I'm aware of the similar question here but uninstalling and installing the latest versions of both Unity and VS did not help. Neither did starting a completely new project. I'm using now the latest versions of Unity (2017.1.0f3) and Visual Studio 2017 (15.3.0).
I've tried uninstalling both applications. Everything was working fine yesterday but then I downloaded additional components to Visual Studio (ASP.NET) and the Hololens build stopped working. Any idea how I could fix the issue?
I can see the Assembly-CSharp-firstpass.dll in Unprocessed folder under the path it's searching for it and even tried to copy it to the correct path but it did not help. I have also tried to build the project without ticking the Unity C# Projects but I get a different error then.
Update
I found this post on Unity forums and I think it's the same issue I have: https://forum.unity3d.com/threads/net-scripting-backend-and-visual-studio-2017-3-incompatibility.487833/
A workaround for this issue is to manually modifiying The "UAP,Version=v10.0.xxx" to "UAP,Version=v10.0" In the project.lock.json files of the GeneratedProjects.
Other solutions to this problem include a downgrade to Visual Studio 2015, or using the patch that the link you provided has.