ok, I fixed the butterfly_recv(): errors by pressing the reset button while uploading the sketch. Now the only problem I have is
Invalid library found in /Users/scottcallahan/Documents/Arduino/libraries/ZumoExamples: no headers files (.h) found in /Users/scottcallahan/Documents/Arduino/libraries/ZumoExamples
Invalid library found in /Users/scottcallahan/Documents/Arduino/libraries/ZumoExamples: no headers files (.h) found in /Users/scottcallahan/Documents/Arduino/libraries/ZumoExamples
Which, once again doesn't show up in the previous version.