Reactive Repository MongoDB not finding methods

public interface CocktailRepository extends ReactiveSortingRepository<Cocktail, String>{
    Flux<Cocktail> findAllBy(Pageable pageable);
}

    @GetMapping("/cocktails")
    public Mono<Page<Cocktail>> getAllCocktails(Pageable pageable) {
        return cocktailRepository.findAllBy(pageable)
                .collectList()
                .zipWith(cocktailRepository.count())
                .map(c -> new PageImpl<>(c.getT1(), pageable, c.getT2()));
    }