Kubectl expose - Error from server (NotFound

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Hi,

I have a microservice running locally using minikube. Everything works locally. As far as I my knowledge, by using minikube tunnel and expose the deployments, I can get the services accessible from the outside.
When I execute the above command, I get this output:

Status:	
	machine: minikube
	pid: 17522
	route: 10.96.0.0/12 -> 192.168.59.100
	minikube: Running
	services: []
    errors: 
		minikube: no errors
		router: no errors
		loadbalancer emulator: no errors

I get no errors, however, the services field is empty. Find below the list of deployments and services.

NAME                                READY   UP-TO-DATE   AVAILABLE   AGE
deployment.apps/postgres-deploy     1/1     1            1           19h
deployment.apps/redis-deploy        1/1     1            1           19h
deployment.apps/result-app-deploy   1/1     1            1           19h
deployment.apps/voting-app-deploy   1/1     1            1           19h
deployment.apps/worker-app-deploy   1/1     1            1           19h

NAME                     TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)        AGE
service/db               ClusterIP   10.97.110.57     <none>        5432/TCP       19h
service/kubernetes       ClusterIP   10.96.0.1        <none>        443/TCP        2d17h
service/redis            ClusterIP   10.101.153.119   <none>        6379/TCP       19h
service/result-service   NodePort    10.110.1.59      <none>        80:30005/TCP   19h
service/voting-service   NodePort    10.104.170.27    <none>        80:30004/TCP   19h

When I tried to expose one the services kubectl expose deployment result-service --type=LoadBalancer --port=80 I get this
Error from server (NotFound): deployments.apps "result-service" not found

You can find all .yaml file on my github repository GitHub - raul-parada/voting-app

How do I include my service inside the services field within minikube tunnel? What I am missing? Thanks in advanced!