Can't do anything (asat error)

[Logianer]

I wanted to to a simple asat(@e[type=marker,tag=test]){} but on compiling, i got the error

Error: Unexpected token: {"type":"kw","value":"asat"}

What should I do? I reinstalled and updated the (node) module but the error still is there...

the code that's causing the problem is:

#file: ./main
asat(@e[type=marker,tag=mei,tag=!setup]) {
  /setblock ~ ~ ~ red_shulker_box
  /tag @s add mes.setup
}