Netlogo: Ask expected this input to be a command block, but got a number instead

Question

I'm getting this error "Ask expected this input to be a command block, but got a number instead" inside my setup procedure...

to setup
....
....
....
....
[ask color gray + 1.5]

Anyone have any ideas?

Answer 1

ask takes an agent or agentset as its first argument and a command block (something like [ ... ] that has commands in it) as its second. So, in your case, you probably want something like:

ask turtles [ set color gray + 1.5 ]