> Error: The function double is predefined by Opusmodus.
> While executing: ccl::cerror-if-redefine-om, in process Opusmodus Extension Initialization(5).
> Type cmd-/ to continue, cmd-. to abort, cmd-\ for a list of available restarts.
> If continued: Replace the definition of double.
> Type :? for other options.
WHAT DOES IT MEAN, AND HOW CAN I FIX IT?