How to fix Cyanogen Mod 12.1 build error – breakfast dogo … breakfast not found

When building Cyanogen Mod 12.1 for the Sony Xperia ZR (dogo), you will encounter the error below.
breakfast dogo ... breakfast not found

The reason for it is that breakfast or brunch are not within the executable paths. Open a terminal window on your system and enter following commands to overcome the error:
$ source build/ <enter>
$ breakfast dogo <enter>
$ brunch dogo <enter>