Mono FastCGI package issues

gistfile1.txt

22:25 daniel@dan /home/daniel
% sudo apt-get install mono-fastcgi-server mono-fastcgi-server4
Reading package lists... Done
Building dependency tree
Reading state information... Done
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:
 mono-fastcgi-server4 : Depends: mono-xsp4-base (= 3.8-2.1) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

22:25 daniel@dan /home/daniel
% sudo apt-get install mono-fastcgi-server mono-fastcgi-server4  mono-xsp4-base
Reading package lists... Done
Building dependency tree
Reading state information... Done
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:
 mono-xsp4-base : Depends: mono-devel but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

22:25 daniel@dan /home/daniel
% sudo apt-get install mono-fastcgi-server mono-fastcgi-server4  mono-xsp4-base mono-devel
Reading package lists... Done
Building dependency tree
Reading state information... Done
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:
 mono-devel : Depends: libmono-cecil-private-cil (< 3.2.9) but 4.0.1-0xamarin4 is to be installed
              Depends: libmono-system-web2.0-cil (>= 2.10.3) but it is not going to be installed
              Depends: libmono2.0-cil (>= 3.0.6) but it is not going to be installed
              Depends: mono-mcs (= 3.2.8+dfsg-10) but 4.0.1-0xamarin4 is to be installed
              Depends: mono-gac (= 3.2.8+dfsg-10) but 4.0.1-0xamarin4 is to be installed
              Depends: mono-xbuild (= 3.2.8+dfsg-10) but 4.0.1-0xamarin4 is to be installed
              Depends: libmono-cil-dev (= 3.2.8+dfsg-10) but 4.0.1-0xamarin4 is to be installed
              Depends: libmono-2.0-dev (< 3.2.8+dfsg-10.1~) but 4.0.1-0xamarin4 is to be installed
E: Unable to correct problems, you have held broken packages.