StatusLogger Log4j2 could not find a logging implementation. Please add log4j-core to the classpath in spring boot code example

Example: error statuslogger log4j2 could not find a logging implementation. please add log4j-core

System.setProperty("log4j.configurationFile","./path_to_the_log4j2_config_file/log4j2.xml");

Logger log = LogManager.getLogger(LogExample.class.getName());