[FIXED] unable to run the Log4j2 demo class - While running the class as Java application, Java exception popped out on screen

Issue

This is the demo class I've created to test log4j properties

Property file is as given

Please help me to understand why i'm unable to run the Log4j class

Console outut

Exception in thread "main" java.lang.ExceptionInInitializerError
Caused by: org.apache.logging.log4j.core.config.ConfigurationException: No type attribute provided for Appender console
    at org.apache.logging.log4j.core.config.properties.PropertiesConfigurationBuilder.createAppender(PropertiesConfigurationBuilder.java:216)
    at org.apache.logging.log4j.core.config.properties.PropertiesConfigurationBuilder.build(PropertiesConfigurationBuilder.java:151)
    at org.apache.logging.log4j.core.config.properties.PropertiesConfigurationFactory.getConfiguration(PropertiesConfigurationFactory.java:56)
    at org.apache.logging.log4j.core.config.properties.PropertiesConfigurationFactory.getConfiguration(PropertiesConfigurationFactory.java:35)
    at org.apache.logging.log4j.core.config.ConfigurationFactory$Factory.getConfiguration(ConfigurationFactory.java:558)
    at org.apache.logging.log4j.core.config.ConfigurationFactory$Factory.getConfiguration(ConfigurationFactory.java:482)
    at org.apache.logging.log4j.core.config.ConfigurationFactory.getConfiguration(ConfigurationFactory.java:322)
    at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:696)
    at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:717)
    at org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:272)
    at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:155)
    at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:47)
    at org.apache.logging.log4j.LogManager.getContext(LogManager.java:196)
    at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:599)
    at utilities.Log4j.<clinit>(Log4j.java:8)

Solution

Looks like you are missing;

appender.console.type = Console

See example here: https://logging.apache.org/log4j/2.x/manual/configuration.html

Answered By - Erion Omeri