Comment # 1 on bug 1042237 from Steffen Winterfeldt

Did you give the VM sufficient RAM (say, 1 GB)?

If you did, we'll need some logs to look into this.

You can switch to a text console (usually Right_Ctr-F2 in vbox), run
'save_y2logs' and attach the log file archive this produces.

Or, follow the instructions at:
https://en.opensuse.org/openSUSE:Report_a_YaST_bug#I_reported_a_YaST2_bug.2C_and_now_I_am_asked_to_.22attach_y2logs.22_.28for_package_installation_also_.22libzypp_logging.22.29._What_does_that_mean.2C_and_how_do_I_do_that.3F