I'm trying to implement this queue class, and I don't know why it won't compile. I wrote a main function in the main.cpp file and even commented out the calls to functions add and removed and still gave me the fatal error.
queue.h
#ifndef QUEUE_H
#define QUEUE_H
namespace queuesavitch {
struct QueueNode {
char data;
[Code] .....
I am currently working on an Account login system and when I run the program I receive this error message:
error LNK2019: unresolved external symbol
If you want to see the full code of the source file just ask
const int NUM_OF_ACCOUNTS = 1;
Account *account = new Account[NUM_OF_ACCOUNTS];
int AccountSearch(int number, string password);
foundAccount = AccountSearch(aNumSearch, passSearch);
int AccountSearch(int n, string p); {
int x = 0;
[code]....
// polynomial header file
#ifndef POLY_H
#define POLY_H
#include<iostream>
using namespace std;
class Polynomial {
friend ostream &operator<<( ostream &out, const Polynomial &rhside);
friend istream &operator>>( istream &in, Polynomial &rhside);
[code]....
When I try to compile a program from a C book I am following I am getting these errors, I have looked for ways to resolve it but I wasn't able to.
Errors:
Error3error LNK2001: unresolved external symbol _druk_instructiesC:UsersIvoDocumentsVisual Studio 2012ProjectsConsoleApplication2ConsoleApplication2Handspel.objConsoleApplication2
Error4error LNK2001: unresolved external symbol _speler_keuzeC:UsersIvoDocumentsVisual Studio 2012ProjectsConsoleApplication2ConsoleApplication2Handspel.objConsoleApplication2
Error5error LNK2001: unresolved external symbol _machine_keuzeC:UsersIvoDocumentsVisual Studio
[Code] .....
The .h file:
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <string>
#ifdef __cplusplus
extern "C"
[Code] .....
I am getting this error while compiling my c++ project in Visual Studio2005,
Error3error LNK2001: unresolved external symbol "class OdRxModule * __cdecl odrxCreateModuleObject_For_OdRasterProcessingServicesImpl(class OdString const &)" (?odrxCreateModuleObject_For_OdRasterProcessingServicesImpl@
@YAPAVOdRxModule@@ABVOdString@@@Z)DwgDirect.obj
Error4error LNK2001: unresolved external symbol "class OdRxModule * __cdecl
[code]....
eventhough i linked all the .lib files under the path
1 . Project->Properties->Configuration Properties->Linker->Input->Additional Dependencies->
2. Toolos->options->VC++ Directories
I am working on building a set of templated data structures for my own learning and have run in to an error when instantiating my templated linked list. I receive the following error:
error LNK2019: unresolved external symbol "public: __thiscall LinkedList<int>::~LinkedList<int>(void)" (??1?$LinkedList@H@@QAE@XZ) referenced in function _main
--LinkedList.h--
#ifndef LINKEDLIST_H
#define LINKEDLIST_H
template<class T>
class LinkedList {
[code]....
why I would be receiving this error?
I'm trying to create a public and static field in a class called ResourceManager. But when trying to access the field even from inside the class it wont work. I'm getting this error message:
Error 1 error LNK2001: unresolved external symbol "public: static int ResourceManager::num" (?num@ResourceManager@@2HA)
Here's my code:
ResourceManager.h
Code:
class ResourceManager {
public:
static int num;
static void loadContent();
[Code] .....
I'm using Visual Studio 2012.
My program will not run because of error LNK2028 "unresolved token" and error LNK2019 "unresolved external signal" and I do not know why. My teacher says that I need to make the constructor and display functions display class variables in different formats, but I do not know what to do with that. Here are my 3 files:
Header take 2.h:
#pragma once
#include <iostream>
#include <string>
using namespace std;
class Heading {
private:
string company, report;
[Code] ....
Here are the errors:
Error1error LNK2028: unresolved token (0A0003C9) "public: __thiscall Heading::Heading(void)" (??0Heading@@$$FQAE@XZ) referenced in function "int __cdecl main(void)" (?main@@$$HYAHXZ)c:UsersOwnerdocumentsvisual studio 2012ProjectsClassLibrary2ClassLibrary2Source1.objClassLibrary2
[Code] ....
I'm doing a homework assignment where I have to calculate monthly interest from a starting balance. I've pulled several sections of the code from various parts of the book. So my problem may be that I'm not combining them correctly.
I'm getting the following error:
Error1error LNK2019: unresolved external symbol "public: __thiscall SavingsAccount::SavingsAccount(void)" (??0SavingsAccount@@QAE@XZ) referenced in function _main
The ios flags are new to me and that may be part of the problem. As soon as I can get a working program, I'm going to make the starting balance and interest rate user inputs. But I get seem to get past this error.
// Savings.cpp
// Chapter 10_Problem 10.7
#include <iostream>
[Code].....
This is a file called namespaces.h
#pragma once
namespace mycode {
void foo();
}
This is a file called source.cpp
#include <iostream>
#include "namespaces.h"
namespace mycode {
void foo() {
std::cout << "foo() called in the mycode namespace" << std::endl;
}
}
When I try to run this code i keep getting these errors;
Error1error LNK2019: unresolved external symbol "void __cdecl mycode::foo(void)" (?foo@mycode@@YAXXZ) referenced in function _mainC:UsersHomeDesktopgameDevWin32Project1Win32Project1Source1.objWin32Project1
Error2error LNK1120: 1 unresolved externalsC:UsersHomeDesktopgameDevWin32Project1DebugWin32Project1.exeWin32Project1
this is a win32 console application, like the books says, the book i am working from that is.
My code is rather short, but when I compile it, I get 1 error about an unresolved external symbol, it probably has something to do with the file processing. . .
Just a basic keylogger using SDL
Keylogger.h
#ifndef KEYLOGGER_H
#define KEYLOGGER_H
#include <fstream>
#include <SDL.h>
using namespace std;
class Keylogger{
[Code] .....
Errors
Error1error LNK2019: unresolved external symbol __imp___CrtDbgReportW referenced in function "public: char const & __thiscall std::_String_const_iterator<class std::_String_val<struct std::_Simple_types<char> > >::operator*(void)const " (??D?$_String_const_iterator@V?$_String_val@U?$_Simple_types@D@std@@@std@@@std@@QBEABDXZ)C:Usersaviedocumentsvisual studio 2013ProjectsPracticePracticeKeylogger.objPractice
So even though I have so many issues with linking libraries, I apparently became the go-to person for a fellow college friend of mine for a sql library. He's using the mysql connector/c++ and his team has had quite a few issues getting it set up. I've solved two out of three issues:
1st issue I solved was that they didn't know how to build boost, I just linked it and they were good to go.
2nd issue I solved was that they were missing libmysql.lib, I just installed the mysql server onto their computer and linked that up. 3rd issue is where I am now stumped at, as they get a compile error: LNK2001 unresolved external symbol: _get_driver_instance().
So I tried to make a tile map function to display my map as tiles. I keep getting unresolved external symbol errors, I've included the header file, and used every declaration in it, but to be completely honest this is mostly just a try to see if I could do it, and so far I'm failing. So if you can see why I'm getting the error.
header tileMap.h:
#include<SFML/Graphics.hpp>
#include<iostream>
#include<fstream>
#include<string>
#include<cctype>
#include<vector>
class tileMap{
[Code] .....
output message:
1234567891011121314
1
1> main.cpp
1>c:users wiggystardustdocumentsvisual studio 2010projects ilemapenginemain.cpp(21): warning C4018: '<' : signed/unsigned mismatch
[Code] ....
The project builds on Win32 platform, but not on x64.
Full error message: dllentry.obj : error LNK2001: unresolved external symbol "class CFactoryTemplate * g_Templates" (?g_Templates@@3PAVCFactoryTemplate@@A)
The dllentry.cpp (a DirectShow base class) compiles on both platforms. It contains the external declarations:
extern CFactoryTemplate g_Templates[];
extern int g_cTemplates;
g_Templates[] is then used in two functions:
__control_entrypoint(DllExport) STDAPI DllGetClassObject(__in REFCLSID rClsID,
__in REFIID riid, __deref_out void **pv)
[Code]...
myClass.cpp contains the definitions for the two externals in dllentry.cpp, at top level, just after the includes:
CFactoryTemplate* g_Templates=0;
int g_cTemplates=0;
myClass.cpp also compiles by itself, but the project does not build. I checked all the libraries in the project settings and all seems to be OK, the 64 bit versions are used.
What should I do to make the project build for x64 platform?
When I compile the program, I get errors I've never seen before. Here's my program:
Header File
#ifndef BINARYTREE_H
#define BINARYTREE_H
#include <iostream>
using namespace std;
[Code] ....
And my errors
1>main.obj : error LNK2019: unresolved external symbol "public: void __thiscall BinaryTree<class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > >::insertNode(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >)"
[Code] ....
Perhaps this can be a very popular error,
Code:
#include <stdio.h>
#include <tchar.h>
#include <iostream>
#include <string>
#include <fstream>// enable writing to and reading from files
#include <cstdlib>
#include <time.h>
using namespace std;
class Person {
[Code] .....
Error list:
Code:
Error 1 error LNK2019: unresolved external symbol "void __cdecl saveperson(void)" (?saveperson@@YAXXZ) referenced in function _main H:Cry_DevProgrammingC++Using_class_ in_ c++Using_class_ in_ c++Using_class_ in_ c++.obj
Error 2 error LNK2019: unresolved external symbol "void __cdecl displayperson(void)" (?displayperson@@YAXXZ) referenced in function _main H:Cry_DevProgrammingC++Using_class_ in_ c++Using_class_ in_ c++Using_class_ in_ c++.obj
Error 3 error LNK2019: unresolved external symbol "void __cdecl editperson(void)" (?editperson@@YAXXZ) referenced in function _main H:Cry_DevProgrammingC++Using_class_ in_ c++Using_class_ in_ c++Using_class_ in_ c++.obj
Error 4 error LNK1120: 3 unresolved externals H:Cry_DevProgrammingC++Using_class_ in_ c++DebugUsing_class_ in_ c++.exe 1
What I can do to fit this problem?
Why i keep getting the above error. below is my code:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
[Code] .....
Attached image(s)
I keep running into this error, even though the first few times i built and ran something it worked perfectly, and since I'm new to CodeBlocks (or any IDE/Compiler for that matter) what to do.Any code i put in, it'll give me this error....
View 3 Replies View RelatedWrite your question here. Hello World not working
they say
1>------ Build started: Project: HelloWorld1, Configuration: Debug Win32 ------
1>LINK : fatal error LNK1123: failure during conversion to COFF: file invalid or corrupt
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
I used this video [URL] ....
#include <iostream>
using namespace std;
int main(){
cout <<"Hello World! " << endl;
return 0;
}
Im getting this error:
"fatal error LNK1169: one or more multiply defined symbols found"
Here's my code:
#include "stdafx.h"
#include <iostream>
using namespace std;
int main () {
cout << "Avoiding Technology" << endl;
bool status = true;
int location;
int a,b;
[Code] ....
I defined
enum symbol {A, B, C};
in file A.h
and in file B.h, I #include "A.h" , but still get error of A , B and C unresolved when using them. WHy?
Assignment: Design a class to store measurements. The class should have two data items, feet and inches, both integers. The class must make sure that the number of inches never gets below zero or above 11. If inches is outside that range, adjust feet accordingly. (Yes this means feet might be a negative number.)
Create a default constructor and one which receives one integer, a number of inches.
Overload the following operators: addition, subtraction, equality, inequality, incrementation (both pre and post) (should add one to inches), and output (in the form of: F’I”)
Code:
#include <iostream>
using namespace std;
class measurements {
private:
int inches;
double feet;
[Code] ....
I am getting a LNK2019 error and an LNK1120 errors:
Error 1 error LNK2019: unresolved external symbol _main referenced in function ___tmainCRTStartup
Error 2 error LNK1120: 1 unresolved externals
I've been using VS2005 for many years without any problems. This morning I needed to rebuild a library called gdk-pixbuf which I've built many times before. It contains a source file called gdk-pixbuf-animation.c
If I build my Release version with Link Time Code Generation enabled I'm suddenly seeing the following error message:-
fatal error C1047: The object or library file '.Releaseobjgdk-pixbufgdk-pixbuf-animation.obj' was created with an older compiler than other objects; rebuild old objects and libraries If I disable Link Time Code Generation I see this error instead:-
fatal error C1900: Il mismatch between 'P1' version '20060201' and 'P2' version '20050411'
It only seems to affect this one project (and even then, only the Release build). I've even restored a backed-up version of the vcproj file but it's no different.
Code:
// declaration
template<class T>
class GetValue {
void Initialize(std::string fileName);
};
[Code] ....
I understood that GetValue<D3DXVECTOR3>::Initialize was not defined.
How can I reuse the GetValue::Initialize method in every derived classes from GetValue, such as GetD3DXVECTOR3, GetD3DXMATRIX, GetOpenGLVector3 etc ...
My code won't run properly. The error says unresolved externals.
#include <iostream>
#include <cstring>
using namespace std;
char again;
void reverse(char*);
[Code] ....
Why I do have this error message?
1>------ Build started: Project: TMA04, Configuration: Debug Win32 ------
1>TMA04.obj : error LNK2019: unresolved external symbol "double __cdecl getFees(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >)" (?getFees@@YANV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z) referenced in function _main
1>C:UsersEvgericDocumentsVisual Studio 2010ProjectsTMA04DebugTMA04.exe : fatal error LNK1120: 1 unresolved externals
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========