/Downloads$ sudo dpkg -i libmpfr4_3.1.2-2_amd64.deb
Selecting previously unselected package libmpfr4:amd64.
dpkg: regarding libmpfr4_3.1.2-2_amd64.deb containing libmpfr4:amd64, pre-dependency problem:
libmpfr4 pre-depends on multiarch-support
multiarch-support is not installed.
dpkg: error processing archive libmpfr4_3.1.2-2_amd64.deb (--install):
pre-dependency problem - not installing libmpfr4:amd64
Errors were encountered while processing:
libmpfr4_3.1.2-2_amd64.deb
Selecting previously unselected package libmpfr4:amd64.
dpkg: regarding libmpfr4_3.1.2-2_amd64.deb containing libmpfr4:amd64, pre-dependency problem:
libmpfr4 pre-depends on multiarch-support
multiarch-support is not installed.
dpkg: error processing archive libmpfr4_3.1.2-2_amd64.deb (--install):
pre-dependency problem - not installing libmpfr4:amd64
Errors were encountered while processing:
libmpfr4_3.1.2-2_amd64.deb