Spring-boot-admin: java.lang.IllegalStateException: No suitable default ClientHttpConnector found error on start up

[ameyg7]

Getting below error during start up of the server:

Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [de.codecentric.boot.admin.server.web.servlet.InstancesProxyController]: Factory method 'instancesProxyController' threw exception; nested exception is java.lang.IllegalStateException: No suitable default ClientHttpConnector found
Caused by: java.lang.IllegalStateException: No suitable default ClientHttpConnector found

Config:

-- client ---

de.codecentric
spring-boot-admin-starter-client
2.2.0

properties -> client
spring.boot.admin.client.url=http://localhost:8093
management.endpoints.web.exposure.include=*
spring.boot.admin.client.username=admin
spring.boot.admin.client.password=admin

-------------------server--------------------------------------------

de.codecentric spring-boot-admin-starter-server 2.2.0 de.codecentric spring-boot-admin-server-ui 2.2.0
properties -> server

spring.application.name=admin-server

eureka.client.service-url.default-zone=http://localhost:8761/admin

spring.security.user.name=admin
spring.security.user.password=admin
server.port=8093

springBoot.version=2.2.1.RELEASE

Using Undertow Spring WebFlux.
Both Spring Boot & SBA are on the latest versions.

[joshiste]

Could you please provide a sample project to reproduce the issue?

[ameyg7]

PFA

storymapping.zip

[joshiste]

You must not exclude the spring-boot-starter-reactor-netty