Осваиваю Spring но получаю вот такую ошибку. Что нужно сделать?

SLF4J(W): Class path contains multiple SLF4J providers. SLF4J(W): Found provider [org.slf4j.nop.NOPServiceProvider@2c13da15] SLF4J(W): Found provider [org.slf4j.log4j12.Log4j12ServiceProvider@77556fd] SLF4J(W): See https://www.slf4j.org/codes.html#multiple_bindings for an explanation. SLF4J(I): Connected with provider of type [org.slf4j.nop.NOPServiceProvider]