Re: apex 5.0 installation

Posted by ErmanArslansOracleBlog on Mar 03, 2016; 8:33pm
URL: http://erman-arslan-s-oracle-forum.124.s1.nabble.com/apex-5-0-installation-tp648p649.html

 select tablespace_name from dba_tablespaces; to check the TEMP tablespace.

Maybe you already  have a TEMP tablespace named TEMP but there is no tempfiles on it.
Add tempfiles to your TEMP tablespace and retest.