it gives:

Install these packages without verification [y/N]? y
(Reading database ... 25373 files and directories currently installed.)
Preparing to replace amsn 0.98.1-1 (using .../amsn_0.98.1-1_armel.deb) ...
Unpacking replacement amsn ...
rm: cannot remove '/usr/share/applications/hildon/amsn.desktop': No such file or directory
dpkg: warning - old post-removal script returned error exit status 1
dpkg - trying script from the new package instead ...
rm: cannot remove '/usr/share/applications/hildon/amsn.desktop': No such file or directory
dpkg: error processing /var/cache/apt/archives/amsn_0.98.1-1_armel.deb (--unpack):
subprocess new post-removal script returned error exit status 1
rm: cannot remove '/usr/share/applications/hildon/amsn.desktop': No such file or directory
dpkg: error while cleaning up:
subprocess post-removal script returned error exit status 1
Errors were encountered while processing:
/var/cache/apt/archives/amsn_0.98.1-1_armel.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)