Hopefully this is an easy fix...

I'm receiving two errors (as the very last two lines of my output log): the first one is 
error*:C:\Users\dell\AppData\Local\V.Micro\Arduino\Builds\Project1\yun\core.a: No such file or directory

The second error is:
Error creating .elf
-- which is probably because of the first error. But I'm not sure why that error is occurring. The code compiles just fine in the Arduino IDE; so I don't think it's a code issue. I think whatever it is is a configuration issue, but I'm not sure where to even start to fix this.

Posting my output log would push the character count of this post to >8000 characters, so I put it in a pastebin located here:
http://pastebin.com/KB9cs73P

Any guidance would greatly be appreciated. Thanks in advance!