Magnolia 4.5 reached end of life on June 30, 2016. This branch is no longer supported, see End-of-life policy.
...
WEB-INF/lib
directory. The location of this directory depends on the application server./webapps/magnoliaAuthor/WEB-INF/lib
/server/default/deploy/magnoliaPublic/WEB-INF/lib
Repeat the steps for each author and public instance.