helloworld execution error on pico m506

A couple of questions:

1) Did you recompile the kernel file for that board? The hello world design example doesn't come with a pre-compiled hello world image so you might be attempting to use a pre-compiled .aocx file for a different board.

2) Assuming you did# 1 did you remember to target the Pico board? This is how you would compile the OpenCL image file: aoc hello_world.cl --board <board> I'm not sure what the name of the pico board is to pass in as <board> but you can find the name by running aoc --list-boards.