System updatefails with a 404 on two extras repositories

[Joseph Ronne]

Ubuntu Studio 15.04 .. this error causes a delay but the nessage says older extras versions will be used.

ProblemType: Crash
DistroRelease: Ubuntu 15.04
Package: indicator-sound 12.10.2+15.04.20150311-0ubuntu1
ProcVersionSignature: Ubuntu 3.19.0-9.9-lowlatency 3.19.1
Uname: Linux 3.19.0-9-lowlatency x86_64
ApportVersion: 2.16.2-0ubuntu3
Architecture: amd64
CrashCounter: 1
Date: Sat Mar 21 17:04:33 2015
ExecutablePath: /usr/lib/x86_64-linux-gnu/indicator-sound/indicator-sound-service
InstallationDate: Installed on 2015-02-13 (35 days ago)
InstallationMedia: Ubuntu-Studio 15.04 "Vivid Vervet" - Alpha amd64 (20150213)
ProcCmdline: /usr/lib/x86_64-linux-gnu/indicator-sound/indicator-sound-service
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/false
Signal: 5
SourcePackage: indicator-sound
StacktraceTop:
 indicator_sound_service_construct ()
 _start ()
Title: indicator-sound-service crashed with signal 5 in indicator_sound_service_construct()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #1432446, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.