===== Downloading live filesystem images =====
Wed Apr 20 00:41:03 UTC 2016
Traceback (most recent call last):
  File "/srv/cdimage.ubuntu.com/bin/../lib/cdimage/build.py", line 738, in build_image_set_locked
    build_livecd_base(config)
  File "/srv/cdimage.ubuntu.com/bin/../lib/cdimage/build.py", line 461, in build_livecd_base
    download_live_filesystems(config)
  File "/srv/cdimage.ubuntu.com/bin/../lib/cdimage/livefs.py", line 946, in download_live_filesystems
    raise NoFilesystemImages("No filesystem images found.")
NoFilesystemImages: No filesystem images found.