调用函数时发生链接错误

当我的代码调用某个函数时,我得到一个错误:

错误22错误LNK2019:未解析的外部符号“public:void __此调用Shalishut::Task8\u将车辆从基础移动到基础(类 *)" (?任务8\u将车辆从基地移动到基地@Shalishut@@QAEXPAVMilitary@@PBDPAD2@Z) 在函数“public:void”中引用 __thiscall Manager::TaskExecute(类Task*,类Military*,类 Shalishut*,字符**常量) (?TaskExecute@Manager@@QAEXPAVTask@@PAVMilitary@@PAVShalishut@@QAPAD@Z) H:\工作区\HW5\HW5\经理.objH用法:\workspace\HW5\HW5\经理.obj

当我不调用那个函数时,一切都正常,项目就开始构建了。

下面是调用函数的代码:

shalishut->Task8_MoveVehicleFromBaseToBase(military,licenseId,campNameA,campNameB);

下面是函数:

void Task8_MoveVehicleFromBaseToBase(Military* military,const char* licenseId,char* fromBase,char* toBase){
 if (military->IsBaseExist(fromBase)){
  if(military->FindBase(fromBase)->IsVehicleExist(licenseId)){
   if (military->IsBaseExist(toBase)){
    if(military->GetCountry()->IsRoadExist(military->FindBase(fromBase)->GetCityName(),military->FindBase(toBase)->GetCityName())){
     military->FindBase(toBase)->AddVehicleToBase( military->FindBase(fromBase)->RemoveVehicleFromBase(licenseId) );
     Time* time = Time::GetInstance();
     long double distance = military->GetCountry()->GetRoadDistance(military->FindBase(fromBase)->GetCityName(),military->FindBase(toBase)->GetCityName());
     Transport* transportToAdd = new Transport(time->GetTime(),(string)fromBase,(string)toBase,distance);
     military->FindVehicle(licenseId)->AddTransport(transportToAdd);
    }
   }
  }
 }
}