Spatial partition checkerboard issue

Hello,
I am trying to spatially partition my data using the checkerboard method and it is producing the following warning: "Warning: Error in : 'get.checkerboard' is not an exported object from 'namespace:ENMeval'". I have the most recent version of ENMeval installed from github, but that's not whats available to Wallace (?). Any idea why this would be happening? Thanks !
Reilly