I get the same error:
Preparing to replace openoffice.org-core 1:2.3.0-1ubuntu5 (using .../openoffice.org-core_1%3a2.3.1-3ubuntu1_i386.deb) ...
Unpacking replacement openoffice.org-core ...
dpkg: error processing /var/cache/apt/archives/openoffice.org-core_1%3a2.3.1-3ubuntu1_i386.deb (--unpack):
trying to overwrite `/usr/lib/openoffice/program/libxmlsec1.so.1', which is also in package openoffice.org-common
Errors were encountered while processing:
/var/cache/apt/archives/openoffice.org-core_1%3a2.3.1-3ubuntu1_i386.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
Adding "Conflicts/Replaces: openoffice.org-common (<< 1:2.3.1-1)" in openoffice.org-core should fix this issue.
I get the same error: org-core_ 1%3a2.3. 1-3ubuntu1_ i386.deb) ... apt/archives/ openoffice. org-core_ 1%3a2.3. 1-3ubuntu1_ i386.deb (--unpack): openoffice/ program/ libxmlsec1. so.1', which is also in package openoffice. org-common apt/archives/ openoffice. org-core_ 1%3a2.3. 1-3ubuntu1_ i386.deb
Preparing to replace openoffice.org-core 1:2.3.0-1ubuntu5 (using .../openoffice.
Unpacking replacement openoffice.org-core ...
dpkg: error processing /var/cache/
trying to overwrite `/usr/lib/
Errors were encountered while processing:
/var/cache/
E: Sub-process /usr/bin/dpkg returned an error code (1)
Adding "Conflicts/ Replaces: openoffice. org-common (<< 1:2.3.1-1)" in openoffice.org-core should fix this issue.