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I am attempting to create a custom service for our on-premises SharePoint 2016 server by following the example found at https://docs.microsoft.com/en-us/previous-versions/office/developer/sharepoint-2010/gg193964(v=office.14). The service is failing during feature activation. I am attempting to find the current service and create a new service if one is not found by using the following code:

var service = SPFarm.Local.Services.GetValue<SchedulerService>();
if (service == null) {
    service = new SchedulerService(SPFarm.Local);
    service.Update();
}

The service variable is returning null, but when it attempts to create and update a new service, SharePoint throws an SPDuplicateObject exception stating that an object with the same name already exists. From what I can tell, the GetValue line is not finding the service as it should. I was led to debugging the feature event receiver because when I used the same line of code in attempting to create my service application it would also return null. Can anyone tell me what I'm doing wrong here?

I have confirmed that GetValue also does not return the requested service in FeatureDeactivating.

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So I don't know why this made any difference, only that it did. I had originally overridden the Name and TypeName of the service (from a different sample code). When I commented these overridden properties out, it started working correctly.

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