aborland@pc-123:~$ LANG=C sudo dpkg -i --force-all libgtkmm-3.0-1_3.3.14-0ubuntu1_i386.deb
Selecting previously unselected package libgtkmm-3.0-1:i386.
dpkg: error processing libgtkmm-3.0-1_3.3.14-0ubuntu1_i386.deb (--install):
libgtkmm-3.0-1:i386 3.3.14-0ubuntu1 (Multi-Arch: no) is not co-installable with libgtkmm-3.0-1:amd64 3.3.14-0ubuntu1 (Multi-Arch: no) which is currently installed
Errors were encountered while processing:
libgtkmm-3.0-1_3.3.14-0ubuntu1_i386.deb
aborland@pc-123:~$ LANG=C sudo dpkg -i --force-all libgtkmm- 3.0-1_3. 3.14-0ubuntu1_ i386.deb 3.0-1:i386. 3.0-1_3. 3.14-0ubuntu1_ i386.deb (--install): 3.0-1:i386 3.3.14-0ubuntu1 (Multi-Arch: no) is not co-installable with libgtkmm- 3.0-1:amd64 3.3.14-0ubuntu1 (Multi-Arch: no) which is currently installed 3.0-1_3. 3.14-0ubuntu1_ i386.deb
Selecting previously unselected package libgtkmm-
dpkg: error processing libgtkmm-
libgtkmm-
Errors were encountered while processing:
libgtkmm-
libgtkmm-3.0 is also non multiarch