[logback-user] help needed for File inclusion in logback with relative path

Hi All, I am looking for help in including outside file in logback.xml. It works when I use absolute path but does not work when I use relative path. I am using logback version 0.9.20. Below is the suedo code I am writing. LOGBACK_FILE_PATH is defined in env.properties. I also tried with <include resource=" "> but it does not work either. <configuration> <property resource="env.properties" /> <include file="${LOGBACK_FILE_PATH}/backendlogback.xml"/> </configuration> Any help is appreciated. Thanks & Regards, Renuka