Tag Archives: Unity3D

Unity

Fixing Unity3D Hub on Fedora

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Unity3D isn’t officially supported on Fedora, only RHEL & Centos. It will work fine, it just needs a little tweak.

You can install Unity Hub by following the instructions for RHEL/Centos here: https://docs.unity3d.com/hub/manual/InstallHub.html#install-hub-linux

After doing so, you’ll probably get a blank screen:

Unity Hub Blank

If you run Unity Hub from the console you’ll see the following error:

ERROR: Licensing SDK logging callback is not registered. Please use 'registerLoggingAdapter' function from the SDK to do
so.
If you try running the licensing SDK directly you'll get this error: 
/opt/unityhub/UnityLicensingClient_V1/Unity.Licensing.Client
No usable version of libssl was found
[1]    694717 IOT instruction (core dumped)  /opt/unityhub/UnityLicensingClient_V1/Unity.Licensing.Client

You can see from the error that Unity is looking for an older version of SSL that is present on RHEL/Centos systems, but not newer version of Fedora.

To fix this, just install a compatibility version of SSL and kill any running versions of Unity Hub

sudo dnf -y install openssl1.1 && killall -9 unityhub-bin

Once that’s done, Unity Hub should work as expected!
If you’re still having trouble, a full reboot should do the trick.

C#, Linux, Unity, Visual Studio

Unity3d On Fedora

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I recently switched from Ubuntu to Fedora and realized that Omnisharp in VS Code for Unity3D projects was not working correctly, even with Use Global Mono set to Always.

The fix ended up being simple: even though they are the same version, install Mono from the mono project’s repository, not Fedora’s.

First: Install mono from here:
https://www.mono-project.com/download/stable/#download-lin

Then, open VS Code and go to settings. To make this change for all projects, click User. To change for just this project (which I’d recommend) click Workspace. This will allow you to do your regular .Net development using the built-in mono (and eventually .Net Core).

Set Omnisharp: Use Global Mono to “always.”

That’s it! That should do the trick.