# Unity Licensing Server Notes ## File Locations The licensing server itself lives on it's own, usually at a high-level directory: `C:\UnityLicensingServer` The licensing client process lives elsewhere. There are versions for each instance of installed editor, for example: `C:\Program Files\Unity\Hub\Editor\6000.0.26f1\Editor\Data\Resources\Licensing\Client` It can also be found in a standalone directory: `C:\Program Files\Unity Hub\UnityLicensingClient_V1` ## Commands The licensing server has several commands that you use on it, but one of the more helpful ones is for `status`: `.\Unity.Licensing.Server.exe status` [Unity Licensing Server Documentation](https://docs.unity.com/licensing/en-us/manual/ServerAdmin#checking-the-status-of-your-server) ## Troubleshooting In Unity Hub, if no licenses are found, even if there should be, I've found the easiest way to attempt to fix it is to go into Unity's organization management pages and make sure there aren't a bunch of old seat activations still in use. I removed old ones, then took the serial key from the **My Seats** section and added it to Unity Hub (even though it should have been there already). After doing that, a new seat activation was added again to my account on that page, and the license server was finally able to reach out and get the **Industry** license in addition to the **Pro** one that the serial key was good for. Some of the error messages I saw before getting it working again: > [!warning] > *Running server status check...* > *Unhandled exception. System.InvalidOperationException:* > > *Unable to resolve service for type* > *'Microsoft.AspNetCore.Mvc.ApplicationParts.ApplicationPartManager'* > *while attempting to activate* > *'Unity.Licensing.Server.Services.PluginInformationProvider'.* > [!warning] > *Unable to retrieve boot drive serial number* > *Could not set access token* #unity