I have downloaded Oracle Developer Days Database 12c virtualbox image. I can boot it and access the desktop. When I try to log in to Enterprise Manager (EM) Express using the URL http://127.0.0.1:8888/em I am asked to install Adobe Flash. I install it and get to the login screen.
I have verified that I can log in with both the SYSTEM and the SYS user in SQLPLUS.
When I try to log in as user SYS in EM Express I get a strange error: Security token does not match. You must login again...
The same happends if I log in as user SYSTEM.
To me it looks like the credentials for SYS are OK, but there is something wrong with the user in the database. Is this correct and if so how can I fix it? Or is EM Express just not setup on the image?