The plugin loads fine and reacts to commands.
But aiming at a chess via looking at it seems broken: you're not looking at a container block
( atm I can only guess it has something to do with getTargetBlock being partly deprecated. It seems that for compiling STATIONARY_WATER etc. have to be replaced by LEGACY_STATIONARY_WATER. )
The plugin loads fine and reacts to commands.
But aiming at a chess via looking at it seems broken: you're not looking at a container block
( atm I can only guess it has something to do with getTargetBlock being partly deprecated. It seems that for compiling STATIONARY_WATER etc. have to be replaced by LEGACY_STATIONARY_WATER. )