The java web project log file could not be found

Hello, ladies and gentlemen. I am a rookie.
when I was learning to import a project, I encountered an error that I could not find the log file.
turn to the gods to guide me. How should I solve this problem? hee _ ^

log4j:ERROR setFile (null,true) call failed.
java.io.FileNotFoundException: d:classnet.log (the system cannot find the specified path.)

Feb.28,2021

I think your problem is a matter of configuration file flow. You can read more books and there should be a new way to match it. Don't do the same old thing

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b3635a-2bffb.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3635a-2bffb.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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