Delete the file from the directory "/etc/ld.so.conf.d", and run the program "sudo ldconfig". Your SQL workbench should then operate properly. To be able to run vmware, edit the vmware wrapper at /usr/bin/vmware and add the line
export LD_LIBRARY_PATH=/usr/lib/vmware/lib/libglibmm-2.4.so.1/:$LD_LIBRARY_PATH
to this file, somewhere near the top, by the line that says "set -e"
If you want to run vmplayer, make the same change to the file /usr/bin/vmplayer which is the wrapper for the vmplayer binaries.
Note that these files get overwritten by the vmware 12.01 update, and the changes will need to be added again...