ERROR reactor.core.scheduler.Schedulers - Scheduler worker in group main failed with an uncaught exception java.lang.NoSuchMethodError: reactor.core.publisher.Mono.fromFuture(Ljava/util/function/Supplier;Z)Lreactor/core/publisher/Mono;

Question

How to fix this error which is coming on updating the cosmos db version from 4.37.1 to 4.45.1

ERROR reactor.core.scheduler.Schedulers - Scheduler worker in group main failed with an uncaught exception

java.lang.NoSuchMethodError: reactor.core.publisher.Mono.fromFuture(Ljava/util/function/Supplier;Z)Lreactor/core/publisher/Mono;

Answer 1

Hi
Anuj Thakur,

Welcome to Microsoft Q&A forum and thanks for using Azure Services.

As I understand, you are getting error on updating the cosmos db version from 4.37.1 to 4.45.1.

Could you please check the versions in use of Reactor core and Spring Boot?

Refer: https://github.com/resilience4j/resilience4j/pull/1259

https://github.com/resilience4j/resilience4j/issues/1233

Let us know if this helped in your case. Thanks