I have same issue, when upgrading from 15.7(3) M2 to 15.9(3)M. Workaround (removing ssh source interface) did not worked.I tried upgrading IOS from configured router and because it failed, I tried it after erasing config. And it also failed. Upgradin...
As I wrote, the router is new, just unpacked from the box. So I can't delete anything on the flash: I understand, that install from usb drive can be a solution. But imagine upgrading later, after router is be placed somewhere far from office and phys...
