I have a clean install of Raspbian Jessie on a B+. Unzipped pico8 properly. Trying to use it off the console (not lxde).
When I try to run "./pico8 -splore" from the pico-8 dir, I get:
"./pico8: error while loading shared libraries: libwiringPi.so: cannot open shared object file: No such file or directory"

When I try to run "pico -splore" from the pico-8 dir, I get:
"bash: pico8: command not found"

I tried chmod a+x pico8 but that does nothing. What newb mistake am I making?

thanks!!!

Knowing nothing about any directions you might have followed to get where you are, the next thing I would try is installing the missing library.

edit - and on the command not found, you have to start with a "./" to execute something.

I started with a clean boot of Raspbian Jessie Lite.
Copied and unzipped pico8 as normal. Files look fine.

Then tried the above.

Then,
sudo apt-get update
sudo apt-get upgrade
Then
sudo apt-get install git-core

All of that worked fine.
But ./pico8 - splore returns the error above about libwiringPi

I wonder if the issue is Jessie Lite vs. the option with PIXEL.

thanks for the help (also, didn't know about ./ so learned something)

It looks like the pico8 binary that comes with the 0.1.9b zipfile isn't compiled correctly, as the pico8 binary in the zipfile is a dynamically linked file, when I think it's supposed to be a statically linked file.

I've written instructions on how to set up libwiringPi in my post describing the problem with the incorrectly compiled "pico8" binary. You can try to follow those instructions, or you can wait for zep to do a new release. You can at least do the very first command ("ldd" then "grep") to see if this is also your problem.

You need to

sudo apt install wiringpi