The name of the resource is always:
<Base namespace>.<RelativePathInProject>.<FileName>
So if your resource is located in “Resources/Xsd/”, and your default project namespace is “MonitoringAPI.Configuration”, the resource name is:
"MonitoringAPI.Configuration.Resources.Xsd.MonitoringConfiguration.xsd"
Also make sure the build action for your resource is set to “Embedded Resource”