The incorrect error was line 3 of the following example:

 ERROR: Too many arguments supplied! This function doesn't accept arguments.
 ERROR: Invalid arguments trying to create block 'heater3'
 ERROR: Could not find create function or struct for block bridge_pwm
 ERROR: pand.ctrl:36: Error creating block

Both the create function and the create struct were found, but the block
wasn't created because the arguments didn't match. This version reports:
 ..
 ERROR: Could not load or create block 'bridge_pwm'

	modified:   controller/controller/controller_load.c