Why this error report in RadASM?

[bridgeic]

Why errors below reported? Seems all these symbols has been defined alread.
Anyone can help to have a look? Thanks.

K:\testasm\j__remove.asm(2965) : error A2006: undefined symbol : copy_start
K:\testasm\j__remove.asm(4759) : error A2006: undefined symbol : loc_471FFB
K:\testasm\j__remove.asm(4759) : error A2006: undefined symbol : loc_472009
K:\testasm\j__remove.asm(4806) : error A2006: undefined symbol : loc_475025
K:\testasm\j__remove.asm(4806) : error A2006: undefined symbol : loc_475029

copy_start:
mov ecx, [esp+4+arg_4]
test ecx, 3
jz main_loop_entrance

......

loc_475029:
mov esp, [ebp+ms_exc_old_esp]
jmp loc_47501C