want to create an admin configuration form but the url is not working and this error is coming

[Manav Gakhar]

Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'com.atlassian.
plugins.tutorial.xpadminui.AdminServlet': Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.bean
s.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.atlassian.sal.api.user.UserManager' available: expected at least 1 bean which q
ualifies as autowire candidate.