error compiling.sh

keymaps/keymap_145158258498reactor.c: In function 'matrix_init_user':
keymaps/keymap_145158258498reactor.c:37:1: warning: control reaches end of non-void function [-Wreturn-type]
 };
 ^
keymaps/keymap_145158258498reactor.c: In function 'matrix_scan_user':
keymaps/keymap_145158258498reactor.c:61:1: warning: control reaches end of non-void function [-Wreturn-type]
 };
 ^
ergodox_ez.c: In function 'matrix_init_user':
ergodox_ez.c:10:1: warning: control reaches end of non-void function [-Wreturn-type]
 };
 ^
ergodox_ez.c: In function 'matrix_scan_user':
ergodox_ez.c:15:1: warning: control reaches end of non-void function [-Wreturn-type]
 };
 ^
ergodox_ez.c: In function 'matrix_init_kb':
ergodox_ez.c:40:1: warning: control reaches end of non-void function [-Wreturn-type]
 };
 ^
ergodox_ez.c: In function 'matrix_scan_kb':
ergodox_ez.c:47:1: warning: control reaches end of non-void function [-Wreturn-type]
 };
 ^
matrix.c:53:1: warning: function declaration isn't a prototype [-Wstrict-prototypes]
 static void unselect_rows();
 ^
matrix.c: In function 'matrix_init_kb':
matrix.c:66:1: warning: control reaches end of non-void function [-Wreturn-type]
 };
 ^
matrix.c: In function 'matrix_scan_kb':
matrix.c:70:1: warning: control reaches end of non-void function [-Wreturn-type]
 };
 ^
In file included from ../../quantum/keymap_common.c:27:0:
../../quantum/keymap_midi.h:21:0: warning: "MIDI" redefined
 #define MIDI 0x6000
 ^
In file included from ../../quantum/keymap_common.c:18:0:
../../quantum/keymap_common.h:186:0: note: this is the location of the previous definition
 #define MIDI(n) (n | 0x6000)
 ^
../../quantum/keymap_common.c: In function 'action_for_key':
../../quantum/keymap_common.c:77:9: warning: implicit declaration of function 'bootloader_jump' [-Wimplicit-function-declaration]
         bootloader_jump();
         ^
../../quantum/keymap_common.c:78:9: warning: 'return' with no value, in function returning non-void
         return;
         ^
../../quantum/keymap_common.c:83:9: warning: 'return' with no value, in function returning non-void
         return;
         ^
../../tmk_core/common/action_tapping.c:327:6: warning: 'waiting_buffer_has_anykey_pressed' defined but not used [-Wunused-function]
 bool waiting_buffer_has_anykey_pressed(void)
      ^
../../tmk_core/common/keymap.c: In function 'keycode_to_action':
../../tmk_core/common/keymap.c:148:13: warning: implicit declaration of function 'bootloader_jump' [-Wimplicit-function-declaration]
             bootloader_jump(); // not return
             ^
../../tmk_core/common/keymap.c:154:5: warning: 'action.code' may be used uninitialized in this function [-Wmaybe-uninitialized]
     return action;
     ^
../../tmk_core/common/command.c: In function 'command_common':
../../tmk_core/common/command.c:181:27: warning: unused variable 'host_driver' [-Wunused-variable]
     static host_driver_t *host_driver = 0;