Visual C++ :: Ambiguous Symbol Error
May 28, 2013
Here is the error I am getting:
1>d: estprojectgdiplusrenderer.h(61): error C2872: 'Font' : ambiguous symbol
1> could be 'c:program files (x86)microsoft visual studio 10.0vcincludecomdef.h(312) : Font'
1> or 'c:program files (x86)microsoft sdkswindowsv7.0aincludegdiplusheaders.h(244) : Gdiplus::Font'
How can I fix this issue?
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Jan 10, 2014
I am working on my project of gesture recognition using c++ and open cv and i am also designing GUI simultaneously. I am using system namespace for GUI part and cv namespace for gestures.
After compiling i am getting error as Ambiguous symbol String is used.
This the link for msdn error support : [URL] .....
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Jul 31, 2013
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
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Dec 20, 2012
I am debugging a library. I can step into the code however the watch window doesn't show the values of any variables. It will display a message in the value field:
Code:
m_pParentCXX0017: Error: symbol "m_pParent" not found
Interestingly it does show values for local variables in that function but not member functions. Most of my data members are member function though that I want to debug. I am using VS2010.
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Feb 9, 2014
Okay so inside my ArcherArmor.cpp, I'm trying to figure out why the map initializer list isn't working, but for some reason I keep getting "Error C2593: 'operator =' is ambiguous". Here is my code:
I also have a class which ArcherArmor is derived from, that has a struct called `Armor`, which I left out for simplicity. The main problem is that error! The only thing I can think of is that im initializing the map wrong.
//ArcherArmor.h
#include <string>
#include <map>
class ArcherArmor {
private:
map <int, Armor> soldier_armor;
public:
void ArcherArmor_shop();
[Code] .....
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May 4, 2013
The compiler keeps on telling me that invalid conversion from wxBitmap* to wxString on the line with the AddTool function, whiles I do not even try to do such an ambiguous typecast.
wxWidgets 2.9.4
MinGW
gdb
Code:
#include "mainwnd.h"
//namespaces
//other definitions and declarations
CMAINWND::CMAINWND(const wxString& szTitle):wxFrame(NULL,wxID_ANY,szTitle) {
wxImage::AddHandler(new wxBMPHandler);
[Code] .....
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Feb 27, 2013
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]....
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Apr 4, 2014
// 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]....
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Jan 17, 2013
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] .....
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Nov 11, 2013
How can i make my program to accept only numerical values and gives a error notice if a character or a symbol is entered???
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Mar 23, 2015
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?
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Apr 5, 2014
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.
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Sep 19, 2013
I'm building a cross-platform library which links to some other 3rd party libraries at run time (i.e. on Windows, the other libs will be available as DLLs whereas on Linux / OS-X etc they'd be shared objects, which are similar). For the sake of argument, one of those libraries is called "jack".
Obviously, our app can't guarantee which version of the other libs will be on the user's system (or even that they'll be installed at all). So our code is littered with statements like this:-
Code:
if (!jack_port_type_get_buffer_size) {
warning << _("This version of JACK is old - you should upgrade to a newer version") << endmsg;
} else {
some_var = jack_port_type_get_buffer_size();
}
We link to the latest version of jack, where that symbol is declared like so:-
Code:
size_t jack_port_type_get_buffer_size();
One problem is that it doesn't even seem to be an exported symbol (although that wouldn't affect the other platform builds). But apart from that, our customer might have an old copy of jack installed or even no copy! We seem to be making the assumption that if our customer has an up-to-date version, jack_port_type_get_buffer_size will be set to a valid address - but in all other case it'll be magically set to zero (there's nothing in our code that sets it to zero).
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Nov 27, 2013
If there are two projects A and B. A is created as .dll, while B is created as static library.
project A has a class "classA"
classA: public classB {
public:
testA();
};
project B has a class "classB"
classB {
public:
testB();
} ;
I want to make a symbol of classB::testB() in A.exp (like ?testB@classB@@QAEXXZ), can I do it by using __declspec(dllexport)?
Also if I make classB as a template class, can the symbol of classB::testB() be generated automatically in A.exp when building project A?
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Jul 11, 2014
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?
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May 13, 2013
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?
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Feb 18, 2014
I'm using GCC 4.8.1 and I want to implement a XML parser using TinyXML and port it to AngelScript
Now, it says: reference to 'Column' is ambiguous
I've declared a class called xml_parser and I've added everything of tinyxml as it's public member when I call Column(), and also Row(), it give's this error. what should I do?
This is it's code:
xml_parser.hpp:
#ifndef AGK_XML_PARSER_H
#define AGK_XML_PARSER_H
#define TIXML_USE_STL
#include <tinyxml.h>
[Code] .....
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Nov 6, 2013
Code:
void write() {
setlocale(LC_ALL, "en_US.UTF-8");
cout <<"";
}
template <typename A, typename ...B>
void write(string argHead, B... argTail) {
setlocale(LC_ALL, "en_US.UTF-8");
[Code] ....
what I'm doing wrong with my write() function? I did like the read() function(for work diferent with another types) but i get these error:
"C:UsersJoaquimDocumentsCodeBlocksMy Classconsole.h|218|error: call of overloaded 'to_string(char*&)' is ambiguous|"
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Dec 4, 2013
I need to make a stub for some standard library function, but the compiler gets confused about which function I want to call in my code. I thought that putting the stubbed function together with its caller into an anonymous namespace will give higher precedence to the stub, but it didn't.
Here is an example code:
#include <cstdlib>
#include <cstdio>
#include <cstring>
#include <signal.h>
namespace{
int sigaction(int signum, const struct sigaction * act, struct sigaction * oldact)
[Code] ....
Result:
main.cpp: In function ‘void {anonymous}::test()’:
main.cpp:23:47: error: call of overloaded ‘sigaction(int, sigaction*, NULL)’ is ambiguous
main.cpp:23:47: note: candidates are:
main.cpp:8:5: note: int {anonymous}::sigaction(int, const sigaction*, sigaction*)
In file included from main.cpp:4:0:
/usr/include/signal.h:266:12: note: int sigaction(int, const sigaction*, sigaction*)
It possible to force the compiler to use my stubbed version of sigaction() and if yes, how to do that? I am not allowed to modify test() function.
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Jan 15, 2014
Let's say I have a templated base class:
Code:
template <typename Input>
class Consumer
{
public:
void consume(Input input)
{
// do something
}
};
Now, I have a class which derives from this twice (A and B are unrelated, but otherwise unimportant classes):
Code:
class A;
class B;
class Derived: public Consumer<A>, public Consumer<B>
{
};
Now, elsewhere in the code I do this:
Code:
{
A myA;
Derived myDerived;
myDerived.consume(myA);
}
This looks like it should be simple enough, but g++ 4.8.1 is giving me a "request for member is ambiguous" error.
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Oct 30, 2013
When compiling the code
#include "tensor.h"
int main() {
Tensor<2,-2> m = {{1,2},{1,3}};
Tensor<2> v = {1,5};
std::cout<<m*v<<"
[Code] ....
Why do I get an ambiguity and why is not the wanted operator*-overload (the last one in the tensor.h file) not even mentioned as one of the candidates? Is it clear what I want to do? And if so, what can I do to make the call unambiguous?
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Feb 23, 2014
I get the following error in XCode whenever I try to access the member I created 'randomGen' in a separate class in a different header file. I have made sure to include the header file and have tried to access it through an object.
This is the code I enter when trying to access the method from randomiser.h in main.cpp. It is also an overloaded function with doubles and integers:
RandomG randomiser;
randomiser.randomGen(); // 'Call to member function 'randomGen' is ambiguous'
This is the code inside randomiser.h:
#include <string>
#include <iostream>
using std::string;
using std::cout;
using std::endl;
class RandomG {
[Code] ....
This is the error inside xcode: [URL] ....
I have tried seperating the code for the functions in another class (main.cpp) and then running and it seems to works, so I'm not sure why I can't put everything in the .h file and then access it?
I would like it in a seperate file so it doesn't clutter my main. I am writing a game with SDL so that might be confusing and I would like the window to have a random title and other random properties, so it would be easier to use a function.
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Mar 1, 2014
i am writing this bank accounts program using structures. i haven't implemented the function before that i want to check if the data is being read and printed. When i build and run the program in visual studio it gives me the following error. "No constructor could take the source type, or constructor overload resolution was ambiguous". Now whats wrong in this program?
/* Bank Accounts Program */
#include <iostream>
#include <string>
#include <fstream>
#include <cstdlib>//needed to use system() function
using namespace std;
const int MAX_NUM = 50;
struct Name{
[code]....
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Mar 5, 2013
I have program. I need programing one game.
char girl;
char computer;
cout << "Girl choose one of symbol x or o";
so girl choose x.
problem : i need random symbol genetation. so if random symbol are x, than girl start play. if random symbol ar o, than computer start game. who to do this?
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Jan 25, 2013
Whats the symbol for divide In C++
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Dec 17, 2014
I want to get the occurence of the symbol ';' for each line of this C program. I type the name of the file Source.c and try to count the occuring symbol, but i am getting the value for ALL of the ';' for each line.
Code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <conio.h>/* For exit() function */
int main()
{
char file_name[150];
FILE *file2 = 0;
gets(file_name);
[code]....
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