In file included from C:\Program Files (x86)\Arduino\libraries\grbl/grbl.h:43:0,

                 from C:\Users\JCs E Recycle Sales\Documents\grbl-4axis\grbl\examples\grblUpload\grblUpload.ino:27:

C:\Program Files (x86)\Arduino\libraries\grbl/nuts_bolts.h:25:0: warning: "false" redefined

 #define false 0

 ^

In file included from C:\Program Files (x86)\Arduino\hardware\arduino\avr\cores\arduino/Arduino.h:24:0,

                 from sketch\grblUpload.ino.cpp:1:

c:\program files (x86)\arduino\hardware\tools\avr\lib\gcc\avr\4.9.2\include\stdbool.h:42:0: note: this is the location of the previous definition

 #define false false

 ^

In file included from C:\Program Files (x86)\Arduino\libraries\grbl/grbl.h:43:0,

                 from C:\Users\JCs E Recycle Sales\Documents\grbl-4axis\grbl\examples\grblUpload\grblUpload.ino:27:

C:\Program Files (x86)\Arduino\libraries\grbl/nuts_bolts.h:26:0: warning: "true" redefined

 #define true 1

 ^

In file included from C:\Program Files (x86)\Arduino\hardware\arduino\avr\cores\arduino/Arduino.h:24:0,

                 from sketch\grblUpload.ino.cpp:1:

c:\program files (x86)\arduino\hardware\tools\avr\lib\gcc\avr\4.9.2\include\stdbool.h:43:0: note: this is the location of the previous definition

 #define true true

 ^

In file included from C:\Program Files (x86)\Arduino\libraries\grbl/grbl.h:43:0,

                 from C:\Users\JCs E Recycle Sales\Documents\grbl-4axis\grbl\examples\grblUpload\grblUpload.ino:27:

C:\Program Files (x86)\Arduino\libraries\grbl/nuts_bolts.h:56:0: warning: "max" redefined

 #define max(a,b) (((a) > (b)) ? (a) : (b))

 ^

In file included from sketch\grblUpload.ino.cpp:1:0:

C:\Program Files (x86)\Arduino\hardware\arduino\avr\cores\arduino/Arduino.h:93:0: note: this is the location of the previous definition

 #define max(a,b) ((a)>(b)?(a):(b))

 ^

In file included from C:\Program Files (x86)\Arduino\libraries\grbl/grbl.h:43:0,

                 from C:\Users\JCs E Recycle Sales\Documents\grbl-4axis\grbl\examples\grblUpload\grblUpload.ino:27:

C:\Program Files (x86)\Arduino\libraries\grbl/nuts_bolts.h:57:0: warning: "min" redefined

 #define min(a,b) (((a) < (b)) ? (a) : (b))

 ^

In file included from sketch\grblUpload.ino.cpp:1:0:

C:\Program Files (x86)\Arduino\hardware\arduino\avr\cores\arduino/Arduino.h:92:0: note: this is the location of the previous definition

 #define min(a,b) ((a)<(b)?(a):(b))

 ^

In file included from C:\Program Files (x86)\Arduino\libraries\grbl/grbl.h:43:0,

                 from C:\Users\JCs E Recycle Sales\Documents\grbl-4axis\grbl\examples\grblUpload\grblUpload.ino:27:

C:\Program Files (x86)\Arduino\libraries\grbl/nuts_bolts.h:61:0: warning: "bit" redefined

 #define bit(n) (1 << n)

 ^

In file included from sketch\grblUpload.ino.cpp:1:0:

C:\Program Files (x86)\Arduino\hardware\arduino\avr\cores\arduino/Arduino.h:123:0: note: this is the location of the previous definition

 #define bit(b) (1UL << (b))

 ^

libraries\grbl\coolant_control.c.o (symbol from plugin): In function `coolant_get_state':

(.text+0x0): multiple definition of `coolant_stop'

sketch\coolant_control.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\coolant_control.c.o (symbol from plugin): In function `coolant_get_state':

(.text+0x0): multiple definition of `coolant_init'

sketch\coolant_control.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\coolant_control.c.o (symbol from plugin): In function `coolant_get_state':

(.text+0x0): multiple definition of `coolant_set_state'

sketch\coolant_control.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\eeprom.c.o (symbol from plugin): In function `eeprom_get_char':

(.text+0x0): multiple definition of `eeprom_get_char'

sketch\eeprom.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\eeprom.c.o (symbol from plugin): In function `eeprom_get_char':

(.text+0x0): multiple definition of `eeprom_put_char'

sketch\eeprom.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\eeprom.c.o (symbol from plugin): In function `eeprom_get_char':

(.text+0x0): multiple definition of `memcpy_to_eeprom_with_checksum'

sketch\eeprom.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\eeprom.c.o (symbol from plugin): In function `eeprom_get_char':

(.text+0x0): multiple definition of `memcpy_from_eeprom_with_checksum'

sketch\eeprom.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\gcode.c.o (symbol from plugin): In function `gc_init':

(.text+0x0): multiple definition of `gc_init'

sketch\gcode.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\gcode.c.o (symbol from plugin): In function `gc_init':

(.text+0x0): multiple definition of `gc_sync_position'

sketch\gcode.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\gcode.c.o (symbol from plugin): In function `gc_init':

(.text+0x0): multiple definition of `gc_execute_line'

sketch\gcode.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\limits.c.o (symbol from plugin): In function `limits_init':

(.text+0x0): multiple definition of `limits_init'

sketch\limits.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\limits.c.o (symbol from plugin): In function `limits_init':

(.text+0x0): multiple definition of `limits_soft_check'

sketch\limits.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\limits.c.o (symbol from plugin): In function `limits_init':

(.text+0x0): multiple definition of `limits_disable'

sketch\limits.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\limits.c.o (symbol from plugin): In function `limits_init':

(.text+0x0): multiple definition of `limits_get_state'

sketch\limits.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\limits.c.o (symbol from plugin): In function `limits_init':

(.text+0x0): multiple definition of `__vector_3'

sketch\limits.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\limits.c.o (symbol from plugin): In function `limits_init':

(.text+0x0): multiple definition of `limits_go_home'

sketch\limits.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\main.c.o (symbol from plugin): In function `main':

(.text+0x0): multiple definition of `main'

sketch\main.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\motion_control.c.o (symbol from plugin): In function `mc_line':

(.text+0x0): multiple definition of `mc_line'

sketch\motion_control.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\motion_control.c.o (symbol from plugin): In function `mc_line':

(.text+0x0): multiple definition of `mc_dwell'

sketch\motion_control.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\motion_control.c.o (symbol from plugin): In function `mc_line':

(.text+0x0): multiple definition of `mc_homing_cycle'

sketch\motion_control.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\motion_control.c.o (symbol from plugin): In function `mc_line':

(.text+0x0): multiple definition of `mc_reset'

sketch\motion_control.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\motion_control.c.o (symbol from plugin): In function `mc_line':

(.text+0x0): multiple definition of `mc_probe_cycle'

sketch\motion_control.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\motion_control.c.o (symbol from plugin): In function `mc_line':

(.text+0x0): multiple definition of `mc_arc'

sketch\motion_control.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\nuts_bolts.c.o (symbol from plugin): In function `read_float':

(.text+0x0): multiple definition of `read_float'

sketch\nuts_bolts.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\nuts_bolts.c.o (symbol from plugin): In function `read_float':

(.text+0x0): multiple definition of `delay_ms'

sketch\nuts_bolts.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\nuts_bolts.c.o (symbol from plugin): In function `read_float':

(.text+0x0): multiple definition of `delay_us'

sketch\nuts_bolts.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\nuts_bolts.c.o (symbol from plugin): In function `read_float':

(.text+0x0): multiple definition of `hypot_f'

sketch\nuts_bolts.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\planner.c.o (symbol from plugin): In function `plan_next_block_index':

(.text+0x0): multiple definition of `plan_next_block_index'

sketch\planner.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\planner.c.o (symbol from plugin): In function `plan_next_block_index':

(.text+0x0): multiple definition of `plan_reset'

sketch\planner.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\planner.c.o (symbol from plugin): In function `plan_next_block_index':

(.text+0x0): multiple definition of `plan_discard_current_block'

sketch\planner.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\planner.c.o (symbol from plugin): In function `plan_next_block_index':

(.text+0x0): multiple definition of `plan_get_current_block'

sketch\planner.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\planner.c.o (symbol from plugin): In function `plan_next_block_index':

(.text+0x0): multiple definition of `plan_check_full_buffer'

sketch\planner.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\planner.c.o (symbol from plugin): In function `plan_next_block_index':

(.text+0x0): multiple definition of `plan_buffer_line'

sketch\planner.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\planner.c.o (symbol from plugin): In function `plan_next_block_index':

(.text+0x0): multiple definition of `plan_sync_position'

sketch\planner.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\planner.c.o (symbol from plugin): In function `plan_next_block_index':

(.text+0x0): multiple definition of `plan_get_block_buffer_count'

sketch\planner.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\planner.c.o (symbol from plugin): In function `plan_next_block_index':

(.text+0x0): multiple definition of `plan_cycle_reinitialize'

sketch\planner.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\print.c.o (symbol from plugin): In function `printString':

(.text+0x0): multiple definition of `printString'

sketch\print.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\print.c.o (symbol from plugin): In function `printString':

(.text+0x0): multiple definition of `printPgmString'

sketch\print.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\print.c.o (symbol from plugin): In function `printString':

(.text+0x0): multiple definition of `print_uint8_base10'

sketch\print.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\print.c.o (symbol from plugin): In function `printString':

(.text+0x0): multiple definition of `print_uint32_base10'

sketch\print.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\print.c.o (symbol from plugin): In function `printString':

(.text+0x0): multiple definition of `printInteger'

sketch\print.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\print.c.o (symbol from plugin): In function `printString':

(.text+0x0): multiple definition of `printFloat'

sketch\print.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\print.c.o (symbol from plugin): In function `printString':

(.text+0x0): multiple definition of `printFloat_CoordValue'

sketch\print.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\print.c.o (symbol from plugin): In function `printString':

(.text+0x0): multiple definition of `printFloat_RateValue'

sketch\print.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\probe.c.o (symbol from plugin): In function `probe_configure_invert_mask':

(.text+0x0): multiple definition of `probe_configure_invert_mask'

sketch\probe.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\probe.c.o (symbol from plugin): In function `probe_configure_invert_mask':

(.text+0x0): multiple definition of `probe_state_monitor'

sketch\probe.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\probe.c.o (symbol from plugin): In function `probe_configure_invert_mask':

(.text+0x0): multiple definition of `probe_init'

sketch\probe.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\probe.c.o (symbol from plugin): In function `probe_configure_invert_mask':

(.text+0x0): multiple definition of `probe_get_state'

sketch\probe.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\protocol.c.o (symbol from plugin): In function `protocol_auto_cycle_start':

(.text+0x0): multiple definition of `protocol_auto_cycle_start'

sketch\protocol.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\protocol.c.o (symbol from plugin): In function `protocol_auto_cycle_start':

(.text+0x0): multiple definition of `protocol_execute_realtime'

sketch\protocol.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\protocol.c.o (symbol from plugin): In function `protocol_auto_cycle_start':

(.text+0x0): multiple definition of `protocol_main_loop'

sketch\protocol.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\protocol.c.o (symbol from plugin): In function `protocol_auto_cycle_start':

(.text+0x0): multiple definition of `protocol_buffer_synchronize'

sketch\protocol.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\report.c.o (symbol from plugin): In function `report_status_message':

(.text+0x0): multiple definition of `report_status_message'

sketch\report.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\report.c.o (symbol from plugin): In function `report_status_message':

(.text+0x0): multiple definition of `report_alarm_message'

sketch\report.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\report.c.o (symbol from plugin): In function `report_status_message':

(.text+0x0): multiple definition of `report_feedback_message'

sketch\report.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\report.c.o (symbol from plugin): In function `report_status_message':

(.text+0x0): multiple definition of `report_init_message'

sketch\report.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\report.c.o (symbol from plugin): In function `report_status_message':

(.text+0x0): multiple definition of `report_grbl_help'

sketch\report.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\report.c.o (symbol from plugin): In function `report_status_message':

(.text+0x0): multiple definition of `report_grbl_settings'

sketch\report.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\report.c.o (symbol from plugin): In function `report_status_message':

(.text+0x0): multiple definition of `report_probe_parameters'

sketch\report.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\report.c.o (symbol from plugin): In function `report_status_message':

(.text+0x0): multiple definition of `report_ngc_parameters'

sketch\report.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\report.c.o (symbol from plugin): In function `report_status_message':

(.text+0x0): multiple definition of `report_gcode_modes'

sketch\report.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\report.c.o (symbol from plugin): In function `report_status_message':

(.text+0x0): multiple definition of `report_startup_line'

sketch\report.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\report.c.o (symbol from plugin): In function `report_status_message':

(.text+0x0): multiple definition of `report_build_info'

sketch\report.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\report.c.o (symbol from plugin): In function `report_status_message':

(.text+0x0): multiple definition of `report_echo_line_received'

sketch\report.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\report.c.o (symbol from plugin): In function `report_status_message':

(.text+0x0): multiple definition of `report_realtime_status'

sketch\report.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\serial.c.o (symbol from plugin): In function `serial_get_rx_buffer_available':

(.text+0x0): multiple definition of `serial_rx_buffer_tail'

sketch\serial.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\serial.c.o (symbol from plugin): In function `serial_get_rx_buffer_available':

(.text+0x0): multiple definition of `serial_rx_buffer_head'

sketch\serial.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\serial.c.o (symbol from plugin): In function `serial_get_rx_buffer_available':

(.text+0x0): multiple definition of `serial_get_rx_buffer_count'

sketch\serial.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\serial.c.o (symbol from plugin): In function `serial_get_rx_buffer_available':

(.text+0x0): multiple definition of `serial_get_tx_buffer_count'

sketch\serial.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\serial.c.o (symbol from plugin): In function `serial_get_rx_buffer_available':

(.text+0x0): multiple definition of `serial_tx_buffer_tail'

sketch\serial.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\serial.c.o (symbol from plugin): In function `serial_get_rx_buffer_available':

(.text+0x0): multiple definition of `serial_tx_buffer_head'

sketch\serial.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\serial.c.o (symbol from plugin): In function `serial_get_rx_buffer_available':

(.text+0x0): multiple definition of `serial_init'

sketch\serial.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\serial.c.o (symbol from plugin): In function `serial_get_rx_buffer_available':

(.text+0x0): multiple definition of `serial_write'

sketch\serial.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\serial.c.o (symbol from plugin): In function `serial_get_rx_buffer_available':

(.text+0x0): multiple definition of `__vector_19'

sketch\serial.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\serial.c.o (symbol from plugin): In function `serial_get_rx_buffer_available':

(.text+0x0): multiple definition of `serial_read'

sketch\serial.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\serial.c.o (symbol from plugin): In function `serial_get_rx_buffer_available':

(.text+0x0): multiple definition of `__vector_18'

sketch\serial.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\serial.c.o (symbol from plugin): In function `serial_get_rx_buffer_available':

(.text+0x0): multiple definition of `serial_reset_read_buffer'

sketch\serial.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\settings.c.o (symbol from plugin): In function `read_global_settings':

(.text+0x0): multiple definition of `read_global_settings'

sketch\settings.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\settings.c.o (symbol from plugin): In function `read_global_settings':

(.text+0x0): multiple definition of `settings_store_startup_line'

sketch\settings.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\settings.c.o (symbol from plugin): In function `read_global_settings':

(.text+0x0): multiple definition of `settings_store_build_info'

sketch\settings.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\settings.c.o (symbol from plugin): In function `read_global_settings':

(.text+0x0): multiple definition of `settings_write_coord_data'

sketch\settings.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\settings.c.o (symbol from plugin): In function `read_global_settings':

(.text+0x0): multiple definition of `settings_read_coord_data'

sketch\settings.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\settings.c.o (symbol from plugin): In function `read_global_settings':

(.text+0x0): multiple definition of `write_global_settings'

sketch\settings.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\settings.c.o (symbol from plugin): In function `read_global_settings':

(.text+0x0): multiple definition of `settings_store_global_setting'

sketch\settings.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\settings.c.o (symbol from plugin): In function `read_global_settings':

(.text+0x0): multiple definition of `settings_restore'

sketch\settings.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\settings.c.o (symbol from plugin): In function `read_global_settings':

(.text+0x0): multiple definition of `settings_init'

sketch\settings.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\settings.c.o (symbol from plugin): In function `read_global_settings':

(.text+0x0): multiple definition of `settings_read_startup_line'

sketch\settings.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\settings.c.o (symbol from plugin): In function `read_global_settings':

(.text+0x0): multiple definition of `settings_read_build_info'

sketch\settings.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\settings.c.o (symbol from plugin): In function `read_global_settings':

(.text+0x0): multiple definition of `get_step_pin_mask'

sketch\settings.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\settings.c.o (symbol from plugin): In function `read_global_settings':

(.text+0x0): multiple definition of `get_direction_pin_mask'

sketch\settings.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\settings.c.o (symbol from plugin): In function `read_global_settings':

(.text+0x0): multiple definition of `get_limit_pin_mask'

sketch\settings.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\spindle_control.c.o (symbol from plugin): In function `spindle_get_state':

(.text+0x0): multiple definition of `spindle_stop'

sketch\spindle_control.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\spindle_control.c.o (symbol from plugin): In function `spindle_get_state':

(.text+0x0): multiple definition of `spindle_init'

sketch\spindle_control.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\spindle_control.c.o (symbol from plugin): In function `spindle_get_state':

(.text+0x0): multiple definition of `spindle_set_state'

sketch\spindle_control.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\stepper.c.o (symbol from plugin): In function `st_go_idle':

(.text+0x0): multiple definition of `st_go_idle'

sketch\stepper.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\stepper.c.o (symbol from plugin): In function `st_go_idle':

(.text+0x0): multiple definition of `st_prep_buffer'

sketch\stepper.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\stepper.c.o (symbol from plugin): In function `st_go_idle':

(.text+0x0): multiple definition of `st_wake_up'

sketch\stepper.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\stepper.c.o (symbol from plugin): In function `st_go_idle':

(.text+0x0): multiple definition of `__vector_11'

sketch\stepper.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\stepper.c.o (symbol from plugin): In function `st_go_idle':

(.text+0x0): multiple definition of `__vector_16'

sketch\stepper.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\stepper.c.o (symbol from plugin): In function `st_go_idle':

(.text+0x0): multiple definition of `st_generate_step_dir_invert_masks'

sketch\stepper.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\stepper.c.o (symbol from plugin): In function `st_go_idle':

(.text+0x0): multiple definition of `st_reset'

sketch\stepper.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\stepper.c.o (symbol from plugin): In function `st_go_idle':

(.text+0x0): multiple definition of `stepper_init'

sketch\stepper.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\stepper.c.o (symbol from plugin): In function `st_go_idle':

(.text+0x0): multiple definition of `st_update_plan_block_parameters'

sketch\stepper.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\system.c.o (symbol from plugin): In function `system_init':

(.text+0x0): multiple definition of `system_init'

sketch\system.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\system.c.o (symbol from plugin): In function `system_init':

(.text+0x0): multiple definition of `__vector_4'

sketch\system.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\system.c.o (symbol from plugin): In function `system_init':

(.text+0x0): multiple definition of `system_check_safety_door_ajar'

sketch\system.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\system.c.o (symbol from plugin): In function `system_init':

(.text+0x0): multiple definition of `system_execute_startup'

sketch\system.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\system.c.o (symbol from plugin): In function `system_init':

(.text+0x0): multiple definition of `system_convert_axis_steps_to_mpos'

sketch\system.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\system.c.o (symbol from plugin): In function `system_init':

(.text+0x0): multiple definition of `system_convert_array_steps_to_mpos'

sketch\system.c.o (symbol from plugin):(.text+0x0): first defined here

libraries\grbl\system.c.o (symbol from plugin): In function `system_init':

(.text+0x0): multiple definition of `system_execute_line'

sketch\system.c.o (symbol from plugin):(.text+0x0): first defined here

sketch\serial.c:25:9: warning: type of 'serial_rx_buffer' does not match original declaration

 uint8_t serial_rx_buffer[RX_BUFFER_SIZE];

         ^

C:\Program Files (x86)\Arduino\libraries\grbl\serial.c:27:9: note: previously declared here

 uint8_t serial_rx_buffer[RX_RING_BUFFER];

         ^

sketch\serial.c:29:9: warning: type of 'serial_tx_buffer' does not match original declaration

 uint8_t serial_tx_buffer[TX_BUFFER_SIZE];

         ^

C:\Program Files (x86)\Arduino\libraries\grbl\serial.c:31:9: note: previously declared here

 uint8_t serial_tx_buffer[TX_RING_BUFFER];

         ^

C:\Program Files (x86)\Arduino\libraries\grbl\settings.h:105:19: warning: type of 'settings' does not match original declaration

 extern settings_t settings;

                   ^

C:\Program Files (x86)\Arduino\libraries\grbl\settings.h:105:19: warning: type of 'settings' does not match original declaration

C:\Program Files (x86)\Arduino\libraries\grbl\settings.h:105:19: warning: type of 'settings' does not match original declaration

 extern settings_t settings;

                   ^

C:\Program Files (x86)\Arduino\libraries\grbl\settings.h:105:19: warning: type of 'settings' does not match original declaration

 extern settings_t settings;

                   ^

C:\Program Files (x86)\Arduino\libraries\grbl\settings.h:105:19: warning: type of 'settings' does not match original declaration

C:\Program Files (x86)\Arduino\libraries\grbl\settings.h:105:19: warning: type of 'settings' does not match original declaration

 extern settings_t settings;

                   ^

C:\Program Files (x86)\Arduino\libraries\grbl\settings.h:105:19: warning: type of 'settings' does not match original declaration

 extern settings_t settings;

                   ^

C:\Program Files (x86)\Arduino\libraries\grbl\settings.h:105:19: warning: type of 'settings' does not match original declaration

C:\Program Files (x86)\Arduino\libraries\grbl\settings.h:105:19: warning: type of 'settings' does not match original declaration

C:\Program Files (x86)\Arduino\libraries\grbl\settings.h:105:19: warning: type of 'settings' does not match original declaration

 extern settings_t settings;

                   ^

C:\Program Files (x86)\Arduino\libraries\grbl\settings.c:24:12: warning: type of 'settings' does not match original declaration

 settings_t settings;

            ^

C:\Program Files (x86)\Arduino\libraries\grbl\settings.h:105:19: warning: type of 'settings' does not match original declaration

 extern settings_t settings;

                   ^

C:\Program Files (x86)\Arduino\libraries\grbl\settings.h:105:19: warning: type of 'settings' does not match original declaration

C:\Program Files (x86)\Arduino\libraries\grbl\settings.h:105:19: warning: type of 'settings' does not match original declaration

 extern settings_t settings;

                   ^

sketch\settings.c:24:12: note: previously declared here

 settings_t settings;

            ^

C:\Program Files (x86)\Arduino\libraries\grbl\gcode.c:37:16: warning: type of 'gc_block' does not match original declaration

 parser_block_t gc_block;

                ^

sketch\gcode.c:36:16: note: previously declared here

 parser_block_t gc_block;

                ^

C:\Program Files (x86)\Arduino\libraries\grbl\gcode.c:36:16: warning: type of 'gc_state' does not match original declaration

 parser_state_t gc_state;

                ^

C:\Program Files (x86)\Arduino\libraries\grbl\gcode.h:229:23: warning: type of 'gc_state' does not match original declaration

 extern parser_state_t gc_state;

                       ^

C:\Program Files (x86)\Arduino\libraries\grbl\gcode.h:229:23: warning: type of 'gc_state' does not match original declaration

 extern parser_state_t gc_state;

                       ^

sketch\gcode.c:35:16: note: previously declared here

 parser_state_t gc_state;

                ^

C:\Program Files (x86)\Arduino\libraries\grbl\system.h:147:17: warning: type of 'sys' does not match original declaration

 extern system_t sys;

                 ^

C:\Program Files (x86)\Arduino\libraries\grbl\system.h:147:17: warning: type of 'sys' does not match original declaration

C:\Program Files (x86)\Arduino\libraries\grbl\system.h:147:17: warning: type of 'sys' does not match original declaration

C:\Program Files (x86)\Arduino\libraries\grbl\system.h:147:17: warning: type of 'sys' does not match original declaration

C:\Program Files (x86)\Arduino\libraries\grbl\main.c:26:10: warning: type of 'sys' does not match original declaration

 system_t sys;

          ^

C:\Program Files (x86)\Arduino\libraries\grbl\system.h:147:17: warning: type of 'sys' does not match original declaration

 extern system_t sys;

                 ^

C:\Program Files (x86)\Arduino\libraries\grbl\system.h:147:17: warning: type of 'sys' does not match original declaration

C:\Program Files (x86)\Arduino\libraries\grbl\system.h:147:17: warning: type of 'sys' does not match original declaration

C:\Program Files (x86)\Arduino\libraries\grbl\system.h:147:17: warning: type of 'sys' does not match original declaration

C:\Program Files (x86)\Arduino\libraries\grbl\system.h:147:17: warning: type of 'sys' does not match original declaration

C:\Program Files (x86)\Arduino\libraries\grbl\system.h:147:17: warning: type of 'sys' does not match original declaration

C:\Program Files (x86)\Arduino\libraries\grbl\system.h:147:17: warning: type of 'sys' does not match original declaration

C:\Program Files (x86)\Arduino\libraries\grbl\system.h:147:17: warning: type of 'sys' does not match original declaration

C:\Program Files (x86)\Arduino\libraries\grbl\system.h:147:17: warning: type of 'sys' does not match original declaration

sketch\main.c:26:10: note: previously declared here

 system_t sys;

          ^

collect2.exe: error: ld returned 1 exit status

exit status 1
Error compiling for board Arduino/Genuino Uno.