Solved Set block

[SniperFox]

loop all blocks in radius 5 around {_plotloc}:
    set {_block} to loop-block      
    set {_blockloc} to location of loop-block      
    if {_block} is stone slab:      
        set block {_blockloc} to magma block

Can someone help me with this?

Here's the error:

[13:43:58 ERROR]: There's no world in a periodic event if no world is given in the event (e.g. like 'every hour in "world"') (System.sk, line 485: set block {_blockloc} to magma block')

 

[Mr_Simba]

set loop-block, not set block

 

[SniperFox]

OH, sorry, now it works, thanks a lot. (I'm just a little idiot: \)