This is an open-scource code project from Rudolph Labs. See the website for more information. Initiated by Bob Rudolph (sentryGun53) projectSentryGun@rudolphLabs.com, sentryGun53@gmail.com
I mean, I haven't worked on this since college, but have you considered removing that file? It says it can't rename it because the file exists. Maybe you need to clean first.
When I verify it, in the end it pops up with this error:
exit status 1 Error compiling for board Arduino/Genuino Uno.
And if you scroll up I see this message:
c:\users\devizes\documents\my documents\arduino-1.8.5\hardware\tools\avr\bin../lib/gcc/avr/4.9.2/../../../../avr/bin/ar.exe: unable to rename 'core\core.a'; reason: File exists
Can you please help me with this error? Thanks.