DPKG Error : Sub-process /usr/bin/dpkg returned an error code (1)

While installing some software using linux terminal, we may encounter error like this

Sub-process /usr/bin/dpkg returned an error code (1)

I got this error while installing a library file "libpam0g:i386".



Just see the 4th line of this error.

dpkg: error processing /var/cache/apt/archives/libpam0g_1.1.3-7ubuntu3_i386.deb (--unpack):

The error can be rectified by using the command

sudo dpkg -i --force-overwrite /var/cache/apt/archives/libpam0g_1.1.3-7ubuntu3_i386.deb