I can't install RMagick because of the following dependency problem after trying sudo apt-get install libmagick9-dev (required according to this) on Ubuntu 10.0.4:

Note, selecting libmagickwand-dev instead of libmagick9-dev Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation:



The following packages have unmet dependencies:

    libmagickwand-dev:

        Depends: libmagickwand2 (= 7:6.5.7.8-1ubuntu1.1) but it is not going to be installed

        Depends: libmagickcore2-extra (= 7:6.5.7.8-1ubuntu1.1) but it is not going to be installed

        Depends: libmagickcore-dev (= 7:6.5.7.8-1ubuntu1.1) but it is not going to be installed

Trying to apt-get install libmagickwand2, I get this:

> The following packages have unmet dependencies:   libmagickwand2:

> Depends: libice6 (>= 1:1.0.0) but it is not installable

>                   Depends: libjpeg62 but it is not installable

>                   Depends: libmagickcore2 (>= 7:6.5.7.8) but it is not going to be installed

>                   Depends: libsm6 but it is not installable

>                   Depends: libtiff4 but it is not going to be installed

>                   Depends: libxt6 but it is not installable