在编译的时候提示出现下面的错误：[javac] Compiling 1 source file to /home/www/hudson/jobs/Services - QA/workspace/services/bin
[javac] /home/www/hudson/jobs/Services - QA/workspace/services/src/com/verani/services/MarketStatsDownloader.java:177: cannot find symbol
[javac] symbol : method debug(java.lang.String,java.lang.String,java.lang.String,java.lang.String)
[javac] location: interface org.slf4j.Logger
[javac] logger.debug("Process Town [{} / {}] by URL: [{}]", "" + town.getId(), town.getFullName(), url);
[javac] ^
[javac] Note: /home/www/hudson/jobs/Services - QA/workspace/services/src/com/verani/services/MarketStatsDownloader.java uses or overrides a deprecated API.
[javac] Note: Recompile with -Xlint:deprecation for details.
[javac] 1 error程序的代码如下：logger.debug("Process Town [{} / {}] by URL: [{}]", "" + town.getId(), town.getFullName(), url);