Why am I seeing this?

[DjDemonD]

M98 P"0:/macros/Mesh-Grid Probe"
Error: Bed calibration: 0 points provided but only 3, 4 and 5 supported

my mesh-grid probe macro just contains:
M561 ;disable compensation
G1 X135 Y97 Z5 F2000 ;move to bed centre
G30 :set Z=0 level
G1 Z5 ;lift nozzle
G29 ;grid compensation
G1 X140 Y100 Z50 F2000 ;centre head

and im running 1.21RC4

EDIT also does it on RC5, although it completes the mesh probe and saves the mesh just fine.

[dc42]

Because in this line:

G30 :set Z=0 level

you used a colon instead of a semicolon.

[DjDemonD]

Great spot David thanks.

Just curious though until I upgraded to 1.21rcx it didn't throw a warning about this.