maemo.org - Talk - Error while trying to install 3rd party apps

I get the following error when I try to install various 3rd party applications:

Quote:

hildon-application-manager 2.2.35-3
-----
Installing facebook-services 0.4.7
required disk space: 197114
(Reading database ... 20311 files and directories currently installed.)
Unpacking feedservice-utils (from .../feedservice-utils_0.4.0_armel.deb) ...
dpkg: error processing /home/user/MyDocs/.apt-archive-cache/feedservice-utils_0.4.0_armel.deb (--unpack):
trying to overwrite `/opt', which is also in package base-files
Unpacking feedservice (from .../feedservice_0.3.2_armel.deb) ...
dpkg: error processing /home/user/MyDocs/.apt-archive-cache/feedservice_0.3.2_armel.deb (--unpack):
trying to overwrite `/opt', which is also in package base-files
Unpacking feedservice-plugin-fb-common (from .../feedservice-plugin-fb-common_0.4.2_armel.deb) ...
dpkg: error processing /home/user/MyDocs/.apt-archive-cache/feedservice-plugin-fb-common_0.4.2_armel.deb (--unpack):
trying to overwrite `/opt', which is also in package base-files
Unpacking feedservice-plugin-fb (from .../feedservice-plugin-fb_0.4.7_armel.deb) ...
dpkg: error processing /home/user/MyDocs/.apt-archive-cache/feedservice-plugin-fb_0.4.7_armel.deb (--unpack):
trying to overwrite `/opt', which is also in package base-files
dpkg-deb: subprocess paste killed by signal (Broken pipe)
Unpacking sharing-service-facebook (from .../sharing-service-facebook_0.4.2_armel.deb) ...
dpkg: error processing /home/user/MyDocs/.apt-archive-cache/sharing-service-facebook_0.4.2_armel.deb (--unpack):
trying to overwrite `/opt', which is also in package base-files
Unpacking facebook-services (from .../facebook-services_0.4.7_armel.deb) ...
dpkg: error processing /home/user/MyDocs/.apt-archive-cache/facebook-services_0.4.7_armel.deb (--unpack):
trying to overwrite `/opt', which is also in package base-files
Errors were encountered while processing:
/home/user/MyDocs/.apt-archive-cache/feedservice-utils_0.4.0_armel.deb
/home/user/MyDocs/.apt-archive-cache/feedservice_0.3.2_armel.deb
/home/user/MyDocs/.apt-archive-cache/feedservice-plugin-fb-common_0.4.2_armel.deb
/home/user/MyDocs/.apt-archive-cache/feedservice-plugin-fb_0.4.7_armel.deb
/home/user/MyDocs/.apt-archive-cache/sharing-service-facebook_0.4.2_armel.deb
/home/user/MyDocs/.apt-archive-cache/facebook-services_0.4.7_armel.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

What am I doing wrong?