Unauthorized Service Access. Service [] is not found in service registry

[Unauthorized Service Access. Service is not f]

2018-11-24 15:13:49,512 WARN [org.apereo.cas.services.RegisteredServiceAccessStrategyUtils] - <Unauthorized Service Access. Service [] is not found in service registry.>
2018-11-24 15:13:50,854 WARN [org.apereo.cas.services.RegisteredServiceAccessStrategyUtils] - <Unauthorized Service Access. Service [] is not found in service registry.>

cas.serviceRegistry.watcherEnabled=true
cas.serviceRegistry.repeatInterval=120000
cas.serviceRegistry.startDelay=15000
cas.serviceRegistry.initFromJson=true
cas.serviceRegistry.json.location=file:/usr/local/tomcat/etc/cas/services

cas.serviceRegistry.jpa.url=jdbc:postgresql://xxxxx/cas
cas.serviceRegistry.jpa.user=xxx
cas.serviceRegistry.jpa.password=xxxx
cas.serviceRegistry.jpa.ddlAuto=update
cas.serviceRegistry.jpa.driverClass=org.postgresql.Driver
cas.serviceRegistry.jpa.dialect=org.hibernate.dialect.PostgreSQL95Dialect
cas.serviceRegistry.jpa.autocommit=true


please help me

[Christian Schneider]

Do you have a solution? 

I've got the same issue. I don't know, where I can configure the services to be used in CAS.

All I need is a simple working example for a showcase.

Thanks in advance!