JFinal启动log4j报错?报错

@JFinal 你好，想跟你请教个问题：现在项目启动后log4j报错。报错信息如下：

log4j:ERROR A "org.apache.log4j.ConsoleAppender" object is not assignable to a "org.apache.log4j.Appender" variable.
log4j:ERROR The class "org.apache.log4j.Appender" was loaded by
log4j:ERROR [sun.misc.Launcher$AppClassLoader@2994363b] whereas object of type
log4j:ERROR "org.apache.log4j.ConsoleAppender" was loaded by [WebAppClassLoader=1139254871@43e7a657].
log4j:ERROR Could not instantiate appender named "stdout".
log4j:ERROR A "org.apache.log4j.FileAppender" object is not assignable to a "org.apache.log4j.Appender" variable.
log4j:ERROR The class "org.apache.log4j.Appender" was loaded by
log4j:ERROR [sun.misc.Launcher$AppClassLoader@2994363b] whereas object of type
log4j:ERROR "org.apache.log4j.FileAppender" was loaded by [WebAppClassLoader=1139254871@43e7a657].
log4j:ERROR Could not instantiate appender named "file".

log4j配置如下：

log4j.rootLogger=WARN, stdout, file
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%n%-d{yyyy-MM-dd HH🇲🇲ss}%n[%p]-[Thread: %t]-[%C.%M()]: %m%n

# Output to the File
log4j.appender.file=org.apache.log4j.FileAppender
log4j.appender.file.File=./WebRoot/WEB-INF/BP.log
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%n%-d{yyyy-MM-dd HH🇲🇲ss}%n[%p]-[Thread: %t]-[%C.%M()]: %m%n