Error Installing Modelsim Started Edition (could not find ./../linux_rh60/vsim)

Installing modelsim Intel FPGA starter edition in Ubuntu 16.04 had some problems.

When starting vsim, error message was returned as
"could not find ./../linux_rh60/vsim"

The problem was solved afer replacing line "
vco="linux_rh60" with vco="linux"

Three libraries where missing, actually there 32 bit versions
 
error while loading shared libraries: libX11.so.6
error while loading shared libraries: libXext.so.6
error while loading shared libraries: libXft.so.2

After installing those libraries by following command vsim started without errors

sudo apt install libxft2:i386
sudo apt install libxext6:i386
sudo apt-get install libx11-6:i386