some problems running Reaper on Linux

Trying to run Reaper on Linux, first there was an error message that libasound library could not be found,

https://askubuntu.com/questions/482478/libasound-so-2-cannot-open-shared-object-file-no-such-file-or-directory

sudo apt-get install liboss4-salsa-asound2

sudo apt install pulseaudio

But the real problem was, if you install the i686 instead of the x86-64 on an AMD64 64-bit system, you will also get this error message.

https://forum.cockos.com/showthread.php?t=255012

(that was the issue. )

Then, once Reaper opened, error opening audio device.

JACK is default, maybe I should install it?

Other options are pulse audio and alsa.

pulse audio is installed, but when I choose that option, Reaper hangs.

A reboot (after pulse audio was installed) solved the issue.