Steam error: “You are missing the following 32-bit libraries, and steam may not run: libXtst.so.6 libgtk-x11-2.0.so.0”

Question

I’m trying to install steam on Ubuntu 20.04 LTS.
It downloaded everything correctly from what I can tell, but crashes upon launching. It says:
“You are missing the following 32-bit libraries, and steam may not run:
libXtst.so.6
libgtk-x11-2.0.so.0”
What should I do to fix this?

Dan Scally · Answer

You can get the 32 bit version of those two .so's by installing these packages:
sudo apt install libgtk2.0-0:i386
sudo apt install libxtst6:i386

The ":i386" suffix specifies the 32 bit version of the package. Note that this step may be a prerequisite (it doesn't seem to be for me, but people often report that it is).
sudo dpkg --add-architecture i386

Steam error: “You are missing the following 32-bit libraries, and steam may not run: libXtst.so.6 libgtk-x11-2.0.so.0”

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