AEM service unsatisfied

When you see your AEM service and servlet is showing in state unsatisfied. Then click on the class name and see the detail, on the OSGi console that what causing this issue and which reference is unsatisfied.

Unsatisfied
Service Name: org.apache.sling.api.resource.ResourceResolver
Cardinality: 1..1
Policy: static
Policy Option: reluctant
No Services bound

ResourceResolver is not satisfied or the way of creating ResourceResolver object is not correct.

Policy Option

RELUCTANT
          The reluctant policy option is the default policy option for both static and dynamic reference policies.

References

1. Reference Policy Option