After upgrade Virtualbox, I can not install Extension Pack. I have two files named:
Oracle_VM_VirtualBox_Extension_Pack-5.0.20-106931.vbox-extpack
and
Oracle_VM_VirtualBox_Extension_Pack-5.0.20.vbox-extpack
VirtualBox works with Guest addition but I can not use USB ver 2 and 3
See attached scrennshot with errors. Any idea what to do?