package tor 0.2.1.30-1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[xDev]

Installing of tor fails with this error message (from the DpkgTerminalLog.txt):

Starting tor daemon: tor...
Oct 02 20:47:46.916 [notice] Tor v0.2.2.35 (git-73ff13ab3cc9570d). This is experimental software. Do not rely on it for strong anonymity. (Running on Linux x86_64)
Oct 02 20:47:46.918 [notice] Initialized libevent version 2.0.16-stable using method epoll. Good.
Oct 02 20:47:46.918 [notice] Opening Socks listener on 127.0.0.1:9050
Oct 02 20:47:46.918 [warn] Could not bind to 127.0.0.1:9050: Address already in use. Is Tor already running?
Oct 02 20:47:46.918 [notice] Opening Control listener on /var/run/tor/control
Oct 02 20:47:46.918 [notice] Closing partially-constructed listener Control listener on /var/run/tor/control:0
Oct 02 20:47:46.918 [warn] Failed to parse/validate config: Failed to bind one of the listener ports.
Oct 02 20:47:46.918 [err] Reading config failed--see warnings above.
invoke-rc.d: initscript tor, action "start" failed.
dpkg: error processing tor (--configure):
 subprocess installed post-installation script returned error exit status 1

ProblemType: Package
DistroRelease: Ubuntu 11.04
Package: tor 0.2.1.30-1
ProcVersionSignature: Ubuntu 2.6.38-10.46-generic 2.6.38.7
Uname: Linux 2.6.38-10-generic x86_64
NonfreeKernelModules: wl
Architecture: amd64
Date: Thu Aug 18 00:30:12 2011
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
SourcePackage: tor
Title: package tor 0.2.1.30-1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)

[Runa A. Sandvik (runasand)]

Do you have official torproject.org repositories listed in /etc/apt/sources.list ?

[xDev (mf393)]

I'm using the version found in default repositories, official ones are blocked in my country.

[Runa A. Sandvik (runasand)]

The DNS name deb.torproject.org is actually a set of independent servers in a DNS round robin configuration. If you for some reason cannot access it you might try to use the name of one of its part instead. Try deb-master.torproject.org, mirror.netcologne.de or tor.mirror.youam.de.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[papukaija (papukaija)]

I added the precise tag from the duplicates.

[Daniel Letzeisen (dtl131)]

It appears the issue is that Tor cannot be upgraded while running..