Possible Duplicate:
How do I resolve unmet dependencies?
I am unable to install python-dev becasue of unment dependancies. How can I get around this? Deleting python is not an option and I cant got back to python2.6-dev as it cant be found.
sudo apt-get install python2.7-dev
The following packages have unmet dependencies: python-dev : Depends: python2.7-dev (>= 2.7.3) but it is not going to be installed E: Unable to correct problems, you have held broken packages.
So try python2.7-dev
sudo apt-get install python2.7-dev
The following packages have unmet dependencies: python2.7-dev : Depends: python2.7 (= 2.7.3-0ubuntu3) but 2.7.3-0ubuntu3.1 is to be installed Depends: libpython2.7 (= 2.7.3-0ubuntu3) but 2.7.3-0ubuntu3.1 is to be installed E: Unable to correct problems, you have held broken packages.
Finally check the cache
apt-cache policy python python-dev
Candidate: 2.7.3-0ubuntu2 Version table: *** 2.7.3-0ubuntu2 0 500 http://ftp.antik.sk/ubuntu/ precise/main i386 Packages 100 /var/lib/dpkg/status
python-dev: Installed: (none) Candidate: 2.7.3-0ubuntu2 Version table: 2.7.3-0ubuntu2 0 500 http://ftp.antik.sk/ubuntu/ precise/main i386 Packages foo@ubuntu-VirtualBox:~$ apt-cache policy python python-dev python: Installed: 2.7.3-0ubuntu2 Candidate: 2.7.3-0ubuntu2 Version table: *** 2.7.3-0ubuntu2 0 500 http://ftp.antik.sk/ubuntu/ precise/main i386 Packages 100 /var/lib/dpkg/status python-dev: Installed: (none) Candidate: 2.7.3-0ubuntu2 Version table: 2.7.3-0ubuntu2 0 500 http://ftp.antik.sk/ubuntu/ precise/main i386 Packages