After installing apex 4.2.6 cant open admin page

Question

I installed apex 4.2.6 by this tutorial http://www.oracle.com/technetwork/developer-tools/apex/application-express/upgrade-apex-for-xe-154969.html, and after finishing all commands and after i start database and get started Xe server or start http://localhost:8080/apex/apex_admin, it doesnt do anything, just blank screen.

ANyone knows what could be the problem

could be anything. Did you check any logs? What listener and web server do you use? Is it an upgrade or a new install? Are you sure all the steps are followed? — Non Plus Ultra

Casey Harmono Van Casey Harmono Van · Accepted Answer · 2015-03-31T20:29:54

I'm a total newbie myself, but try this URL http://127.0.0.1:8080/apex/f?p replace localhost with this IP address. I think that will work.