I am using logback in my web application, and i want to set RollingFileAppender with FixedWindowRollingPolicy and SizeBasedTriggeringPolicy. but i am getting error in doing the same.

14:53:30,401 |-ERROR in ch.qos.logback.core.joran.spi.Interpreter@9:82 - no applicable action for [triggeringPolicy], current ElementPath is [[configuration][appender][triggeringPolicy]]
14:53:30,401 |-ERROR in ch.qos.logback.core.joran.spi.Interpreter@10:20 - no applicable action for [maxFileSize], current ElementPath is [[configuration][appender][triggeringPolicy][maxFileSize]]

I am using logback-classic 1.1.2, logback-core 1.1.2 and slf4j-api 1.7.10.
PFA logback.xml.

It creates the file and the mentioned pattern zip for the first time, but keeps on appending the same file further.

Windows 7, tomcat 7, JDK 1.7.55