Bug Unity HUB cannot download Android SDK/NDK in any Unity 2022 version

I believe this problem has been discussed before, but never truly resolved. I'm using Unity Hub (3.4.1) on my iMac (Ventura 13.1), and I'm trying to download a 2022 Unity version with Android SDK, but as the screenshot shows, the download fails (this occurs with every Unity 2022 version):



The reason I specifically want to update to a Unity 2022 version is because of the end of this thread:

https://forum.unity.com/threads/upload-app-larger-than-150mb.1334297/#post-8770315
(quick summary: despite asset bundling everything in my project, I couldn't get the base-master.apk under 150MB, I could only get it to 178MB. Word on the street is that this was actually an Unity issue. So, I'm upgrading to a 2022 version to try my luck).

I have tried just opening my project in a Unity 2022 version, and then copying the Android Studio file path to the Android SDK in the "External Tools" menu in Unity's preferences... but that doesn't work. Can't create a build because "Android SDK is not found or is invalid".

So, does anybody know how to fix this? Thanks!

 

Sure thing. I had to redownload Unity 2022.2.7f1, and I received these errors:



Please find attached the info-log.json file. Let me know what you think. Thanks!

 

Thanks for the suggestion. Not only did I restart Unity Hub, I restarted my computer as well. The result is the same as the beginning:



You can find the info-log.json file attached.

What do you think I can try next? Thank you.

 

Thanks for getting back. I did try this -- unfortunately, the result is the same. As you suggested, I first installed Unity 2022.2.7.f1 with no modules. After it installed, I went to "Add Modules" and selected the Android modules.

The download was "Completed with Errors" at 7 out of 10 steps:



Interestingly, I then went to check to see if I could add those modules again, and this is what I see:



So, Unity Hub believes that the modules are indeed installed, but they aren't. Because when I try to create a build, Unity says that there is no Android SDK in the console.

What do you think is going on here? What does "Download Failed: read ECONNRESET" mean?

I look forward to hearing back. Thanks!

 

Hello Gennady. I wanted to get back with you and Unity since I have updated the Unity Hub to the latest version (3.4.2). I thought that maybe this would solve the Android SDK issue, but the issue persists. You can see this in the screenshot below.

Do you and/or Unity have any more ideas about what can be done to successful install an Android SDK in a Unity 2022 version? Let me know. Thanks.

 

This is a blocking issue for CI/CD using gitlab and Unity Docker images
As posted over here, the Unity docker images rely on the hub to install the correct SDK for android builds, but all the 2022.2 docker images fail to build to android because of this hub issue !
Its absolutely insane that this issue with the hub is unsolved for so long, while professional studios are blocked from upgrading to the most recent techstream versions and are stuck on 2022.1 versions because of it

 

@judesidloski

Same issue here. Both on latest Production (3.4.2) and Beta releases of the Hub.

Happens on 2022.2.9+ and 2023.x
2022.2.8f1 downloads without issues.


I am not sure what method is used for distribution, but I somehow believe that using torrent would be far less problematic

Update: Installing by clicking on the website [Unity Hub] button works like a charm. Same version by clicking in the hub directly, fails to install.

 

Thanks for letting me know that I'm not alone. I do hope this gets resolved!

Thanks for that. Quick question -- which thing did you click on to get it to install correctly? I clicked on "Unity Hub" next to Unity 2022.2.8, but this did not work (see screenshot):



When I did that I got the same result, as can be seen in the next screenshot:



Is there something you did that I'm not doing? Let me know. Thanks!

Thank you. Apologies for taking so long to respond. Lots of things going on right now. Unfortunately, the documentation seems to be out of date and no longer is helpful. But I will file an official bug report. Thanks.

 

I did exactly the same. Click on the "Unity Hub" button and the installation worked fine.

But I see you have a different error than the one I saw.

This is the error that I see

 

Very interesting. I reported the bug to Unity. I'm wondering if this is specific to certain computers. I ended up using my work computer and I was able to download successfully Unity version 2022.2.17f1 with Android modules via Unity Hub.

So, my work computer is: MacBook Pro 2019, 16GB, 2.6 GHz 6-Core Intel Core i7.

But this still doesn't work on my personal computer, no matter what I do.

My personal computer is: iMac 2017, 16GB, 3.4 GHz Quad Core Intel Core i5

I wonder if there is an issue with certain kinds of computers. What kind of computer do you have? Curious to compare specs.

 

ASUS ROG Strix, intel i7 CPU , 32GB RAM, 8GB RTX GPU.

 

Whelp, that throws that theory out the window. I guess it's still a mystery.

 

This has started recently along with other download issues on my computer.

I think there is some updated 3rd party network/connectivity software component somewhere which affects a certain way of downloading. For some time now I only download big files on my Mobile and then copy them to my PC.

It does not affect system downloads, i.e. Windows updates, or OneDrive sync, Microsoft Store or Steam and Epic downloads. but it does affect other downloads. i.e. browser downloads and the Unity Hub.

Also Plastic is having problems uploading from Unity.
But no issue whatsoever when uploading from the standalone client.


So, there must be something, somewhere, in common. Probably some 3rd party component commonly used in browsers and also used in the Hub. Just no way for us to figure it out without detailed diagnostics and comparisons of web routing and all in between processes.

One thing is certain, it is not the OS. Otherwise, all downloads would fail.

 

Ugh. I think you're right. On the other hand, I heard back directly from Unity about the bug report I filed regarding this issue. Here is what they said:

Hello! Thank you for reporting this issue, I’ve conversed with one of the developers that replied in the forum thread and they will go ahead and attempt to see what is causing the issue. But for now, you can manually install the module without using the Unity Hub by following these steps:

1. Go into our download archive [https://unity.com/releases/editor/archive|https://unity.com/releases/editor/archive|smart-link]
2. Choose the version you wish to install/use
3. Select the “Downloads(OS)” button drop-down (depending on your OS)
4. In the drop-down select the “Unity Installer” selection
5. When installing select only the module you wish to install excluding every other selection

This workaround in theory should work. If you have any additional questions or require further assistance, please feel free to reach out!

Regards,
Gediminas Customer QA Team​

Does that help you think? I haven't tried it yet, since I got it downloaded on another computer (not my main computer).

 

Well, that circumvents the Hub and downloads the components directly. Like it used to be in the past.

So it could be the solution but does not fix the Hub problem. You could try it.

Also here you can find the Alpha versions https://unity.com/releases/editor/alpha
And here you can find the Beta if you need it. https://unity.com/releases/editor/beta

 

Sounds like a plan. I hope they fix this soon.

 

I was able to install the latest 2023.2 alpha. Just not use it through the Hub.

 

I am also having this issue with my PC & Mac machine, when installing 2022.3.6f1, with Android support. I see the same messages about validation error as shown by Jeremy. To get around it, I left the install half done, and tried to compile a Quest app. I had to to manually installed the Android ADB, but after that I was able to make a VR Quest project. Later, I went back to my PC, and tried to install 2021.3.29f1 & 2020.3.28f1, and had the same errors.