Error creating bean named `conversionServicePostProcessor` when using spring-boot-admin-server

I found a pull request to update the documentation: https://github.com/spring-projects/spring-boot/issues/14069

For Reactive WebSockets, {spring-reference}web-reactive.html#webflux-websocket[Spring WebFlux] offers rich support, which is accessible through the spring-boot-starter-webflux module. See the spring-boot-sample-websocket-reactive sample project to see how WebSockets may be implemented using Spring WebFlux.

it turns out that using webflux and websocket leads to conflicts.

also in this pull request was denied in the resolution of the conflict https://github.com/spring-projects/spring-boot/issues/14810

for reactive websocket see this sample https://www.baeldung.com/spring-5-reactive-websockets