程序出现make: *** [ns] Error 1错误

char const*) tools/expoo.o(.rdata$_ZTV13EXPOO_Traffic0x38):expoo.cc: more undefined references to Application::recv_msg(int， char const*) trace/traffictrace.o(.rdata$_ZTV12TrafficTrace0x38):traffictrace.cc: undefined reference to Application::recv_msg(int， char const*) apps/telnet.o(.rdata$_ZTV9TelnetApp0x38):telnet.cc: undefined reference to Application::recv_msg(int，。

char const*) follow collect2: ld returned 1 exit status make: *** [ns] Error 1 请问有办法改正吗 ，这是console中的信息 apps/app.o(.rdata$_ZTV11Application0x38):app.cc: undefined reference to Application::recv_msg(int， char const*) tools/pareto.o(.rdata$_ZTV11POO_Traffic0x38):pareto.cc: undefined reference to Application::recv_msg(int， 恩是有的， char const*) tools/trafgen.o(.rdata$_ZTV16TrafficGenerator0x38):trafgen.cc: undefined reference to Application::recv_msg(int。