[Q] fail installing xposed framework apk topic

hi everybody. I have an samsung galaxy note 3 (sm-n9005 lte international version, 4.4.2 ) and 2 days ago I´ve rooted it. I downloaded the exposed installer apk and tried to install but after all the process is done it says that the app could not be installed. I´ve tried install several versions of apk but all of them with the same result. Any idea of what´s happening? thanks