Trouble with uploading code

while reading data attopilot current sensor happened , serial monitor froze up. closed arduino program , restarted arduino uno upon trying upload code again got bunch of error messages. ideas? did fry board?

here's messages:

arduino: 1.6.3 (mac os x), board: "arduino uno"

sketch uses 4,266 bytes (13%) of program storage space. maximum 32,256 bytes.
global variables use 240 bytes (11%) of dynamic memory, leaving 1,808 bytes local variables. maximum 2,048 bytes.
/users/xxxxxxxx/applications/arduino.app/contents/java/hardware/tools/avr/bin/avrdude -c/users/xxxxxxx/applications/arduino.app/contents/java/hardware/tools/avr/etc/avrdude.conf -v -patmega328p -carduino -p/dev/cu.usbmodemfa131 -b115200 -d -uflash:w:/var/folders/vx/w7345rwd1_34mfgktk7x5xxm0000gn/t/build5370465170547906361.tmp/powermetercode.cpp.hex:i

avrdude: version 6.0.1, compiled on mar 30 2015 @ 12:15:29
         copyright (c) 2000-2005 brian dean, http://www.bdmicro.com/
         copyright (c) 2007-2009 joerg wunsch

         system wide configuration file "/users/xxxxxxxx/applications/arduino.app/contents/java/hardware/tools/avr/etc/avrdude.conf"
         user configuration file "/users/xxxxxxxxx/.avrduderc"
         user configuration file not exist or not regular file, skipping

         using port                    : /dev/cu.usbmodemfa131
         using programmer              : arduino
         overriding baud rate          : 115200
avrdude: stk500_recv(): programmer not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer not responding
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer not responding
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer not responding
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer not responding
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer not responding
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer not responding
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer not responding
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer not responding
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer not responding
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x00

avrdude done.  thank you.

problem uploading board.  see http://www.arduino.cc/en/guide/troubleshooting#upload suggestions.

  report have more information with
  "show verbose output during compilation"
  enabled in file > preferences.

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