Comment 5 for bug 1436834

This has been a very longstanding problem for me. My amateur speculation has been that there is some location mismatch in how part of the installation script that deals with proprietary fonts or other code additions downloads those files versus where it looks for them once they're downloaded.

Here's what a reinstall looks like in terminal (which will then trigger the maddening "failed to download extra data files" popup. I've tried manually creating/deleting/renaming/copying folders and files in the partial downloads and cache areas, but nothing seems to resolve the problem.

sudo apt-get install --reinstall netflix-desktop
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 0 not upgraded.
Need to get 7,866 B of archives.
After this operation, 0 B of additional disk space will be used.
Get:1 http://ppa.launchpad.net/pipelight/stable/ubuntu/ vivid/main netflix-desktop all 0.8.9-1~ubuntu15.04.1 [7,866 B]
Fetched 7,866 B in 0s (19.2 kB/s)
(Reading database ... 595401 files and directories currently installed.)
Preparing to unpack .../netflix-desktop_0.8.9-1~ubuntu15.04.1_all.deb ...
Unpacking netflix-desktop (0.8.9-1~ubuntu15.04.1) over (0.8.9-1~ubuntu15.04.1) ...
Processing triggers for bamfdaemon (0.5.1+15.04.20150202-0ubuntu1) ...
Rebuilding /usr/share/applications/bamf-2.index...
Processing triggers for desktop-file-utils (0.22-1ubuntu3) ...
Processing triggers for gnome-menus (3.10.1-0ubuntu5) ...
Processing triggers for mime-support (3.58ubuntu1) ...
Processing triggers for update-notifier-common (3.160) ...
netflix-desktop: downloading http://cdn-0.nflximg.com/en_us/home/logo_v7.png
Get:1 http://cdn-0.nflximg.com/en_us/home/logo_v7.png [2,680 B]
Fetched 2,680 B in 0s (50.4 kB/s)
Everything downloaded and installed.
Traceback (most recent call last):
  File "/usr/lib/update-notifier/package-data-downloader", line 260, in process_download_requests
    os.remove(f)
OSError: [Errno 2] No such file or directory: '/var/lib/update-notifier/package-data-downloads/partial/logo_v7.png'
wine-browser-installer: downloading http://download.mozilla.org/?product=firefox-22.0&os=win&lang=en-US
Get:1 http://download.mozilla.org/?product=firefox-22.0&os=win&lang=en-US [21.8 MB]
Fetched 21.8 MB in 10s (2,159 kB/s)

Silverlight is provided by Microsoft in unmodified form only, you may not redistribute the software.

Everything downloaded and installed.
Traceback (most recent call last):
  File "/usr/lib/update-notifier/package-data-downloader", line 260, in process_download_requests
    os.remove(f)
OSError: [Errno 2] No such file or directory: '/var/lib/update-notifier/package-data-downloads/partial/?product=firefox-22.0&os=win&lang=en-US'
wine-silverlight5.1-installer: downloading http://download.microsoft.com/download/F/8/C/F8C0EACB-92D0-4722-9B18-965DD2A681E9/30514.00/Silverlight.exe
Get:1 http://download.microsoft.com/download/F/8/C/F8C0EACB-92D0-4722-9B18-965DD2A681E9/30514.00/Silverlight.exe [6,958 kB]
Fetched 6,958 kB in 3s (2,267 kB/s)
Everything downloaded and installed.
Traceback (most recent call last):
  File "/usr/lib/update-notifier/package-data-downloader", line 260, in process_download_requests
    os.remove(f)
OSError: [Errno 2] No such file or directory: '/var/lib/update-notifier/package-data-downloads/partial/Silverlight.exe'
Setting up netflix-desktop (0.8.9-1~ubuntu15.04.1) ...