Exception in thread main javalangNoClassDefFoundError orgapachelogginglog4jLogManager at orgapachepoiutilIOUtilsclinitIOUtilsjava43 at orgapachepoipoifsfilesystemFileMagicvalueOfFileMagicjava209 at or

This error indicates that the class "org.apache.logging.log4j.LogManager" could not be found during runtime. It is likely that the required library or dependency for this class is missing or not properly configured in the project. To resolve this error, make sure that all required libraries and dependencies are properly added to the project build path and configured correctly.