Hi,

I've been going over this for days and can't find a solution. I'm trying to 
build ARToolkit 2.53 with VRML respectively the examples with VRML. But 
every time I got this linker error - I searched the mailling list, forum and 
google archieve and couldn't find anything:

error LNK2001: unresolved external symbol "__declspec(dllimport) class 
ostream & __cdecl endl(class ostream &)" 
(__imp_?endl@@Y ...........@@A ...@@Z )
error LNK2001: unresolved external symbol "__declspec(dllimport) class 
ostream & __cdecl endl(class ostream &)" 
(__imp_?endl@@Y ...........@@A ...@@Z )
error LNK2001: unresolved external symbol "__declspec(dllimport) class 
ostream & __cdecl endl(class ostream &)" 
(__imp_?endl@@Y ...........@@A ...@@Z )
error LNK2001: unresolved external symbol "__declspec(dllimport) class 
ostream & __cdecl endl(class ostream &)" 
(__imp_?endl@@Y ...........@@A ...@@Z )
error LNK2001: unresolved external symbol "__declspec(dllimport) class 
ostream & __cdecl endl(class ostream &)" 
(__imp_?endl@@Y ...........@@A ...@@Z )
error LNK2001: unresolved external symbol "__declspec(dllimport) class 
ostream_withassign cerr" (__imp_?cerr@@3 ........_withassign@@A )
error LNK2001: unresolved external symbol "__declspec(dllimport) class 
ostream_withassign cerr" (__imp_?cerr@@3 ........_withassign@@A )
error LNK2001: unresolved external symbol "__declspec(dllimport) class 
ostream_withassign cerr" (__imp_?cerr@@3 ........_withassign@@A )
error LNK2001: unresolved external symbol "__declspec(dllimport) class 
ostream_withassign cerr" (__imp_?cerr@@3 ........_withassign@@A )
error LNK2001: unresolved external symbol "__declspec(dllimport) class 
ostream_withassign cerr" (__imp_?cerr@@3 ........_withassign@@A )
error LNK2001: unresolved external symbol "__declspec(dllimport) class 
ostream_withassign cerr" (__imp_?cerr@@3 ........_withassign@@A )
error LNK2001: unresolved external symbol "__declspec(dllimport) public: 
class ostream & __thiscall ostream::operator<<(char const *)" 
(__imp_??6ostream@@Q ......@P ..@Z )
error LNK2001: unresolved external symbol "__declspec(dllimport) public: 
class ostream & __thiscall ostream::operator<<(char const *)" 
(__imp_??6ostream@@Q ......@P ..@Z )
error LNK2001: unresolved external symbol "__declspec(dllimport) public: 
class ostream & __thiscall ostream::operator<<(char const *)" 
(__imp_??6ostream@@Q ......@P ..@Z )
error LNK2001: unresolved external symbol "__declspec(dllimport) public: 
class ostream & __thiscall ostream::operator<<(char const *)" 
(__imp_??6ostream@@Q ......@P ..@Z )
error LNK2001: unresolved external symbol "__declspec(dllimport) public: 
class ostream & __thiscall ostream::operator<<(char const *)" 
(__imp_??6ostream@@Q ......@P ..@Z )
error LNK2001: unresolved external symbol "__declspec(dllimport) public: 
class ostream & __thiscall ostream::operator<<(char const *)" 
(__imp_??6ostream@@Q ......@P ..@Z )
error LNK2001: unresolved external symbol "__declspec(dllimport) public: 
class ostream & __thiscall ostream::operator<<(char const *)" 
(__imp_??6ostream@@Q ......@P ..@Z )
error LNK2001: unresolved external symbol "__declspec(dllimport) public: 
class ostream & __thiscall ostream::operator<<(char const *)" 
(__imp_??6ostream@@Q ......@P ..@Z )
error LNK2001: unresolved external symbol "__declspec(dllimport) public: 
class ostream & __thiscall ostream::operator<<(char const *)" 
(__imp_??6ostream@@Q ......@P ..@Z )
error LNK2001: unresolved external symbol "__declspec(dllimport) public: 
class ostream & __thiscall ostream::operator<<(char const *)" 
(__imp_??6ostream@@Q ......@P ..@Z )
error LNK2001: unresolved external symbol "__declspec(dllimport) public: 
class ostream & __thiscall ostream::operator<<(char const *)" 
(__imp_??6ostream@@Q ......@P ..@Z )
error LNK2001: unresolved external symbol "__declspec(dllimport) public: 
class ostream & __thiscall ostream::operator<<(char)" 
(__imp_??6ostream@@Q ......@D @Z )
error LNK2001: unresolved external symbol "__declspec(dllimport) public: 
class ostream & __thiscall ostream::operator<<(char)" 
(__imp_??6ostream@@Q ......@D @Z )
error LNK2001: unresolved external symbol "__declspec(dllimport) public: 
class ostream & __thiscall ostream::operator<<(class ostream & 
(__cdecl*)(class ostream &))" (__imp_??6ostream@@Q ......@P ......@A ...@@Z @Z )
error LNK2001: unresolved external symbol "__declspec(dllimport) public: 
class ostream & __thiscall ostream::operator<<(class ostream & 
(__cdecl*)(class ostream &))" (__imp_??6ostream@@Q ......@P ......@A ...@@Z @Z )
error LNK2001: unresolved external symbol "__declspec(dllimport) public: 
class ostream & __thiscall ostream::operator<<(class ostream & 
(__cdecl*)(class ostream &))" (__imp_??6ostream@@Q ......@P ......@A ...@@Z @Z )
error LNK2001: unresolved external symbol "__declspec(dllimport) public: 
class ostream & __thiscall ostream::operator<<(class ostream & 
(__cdecl*)(class ostream &))" (__imp_??6ostream@@Q ......@P ......@A ...@@Z @Z )
error LNK2001: unresolved external symbol "__declspec(dllimport) public: 
class ostream & __thiscall ostream::operator<<(class ostream & 
(__cdecl*)(class ostream &))" (__imp_??6ostream@@Q ......@P ......@A ...@@Z @Z )
error LNK2001: unresolved external symbol "__declspec(dllimport) public: 
static int const filebuf::openprot" (__imp_?openprot@f ......@@2 ..)
error LNK2019: unresolved external symbol "__declspec(dllimport) class 
ostream & __cdecl endl(class ostream &)" 
(__imp_?endl@@Y ...........@@A ...@@Z ) referenced in function "public: virtual 
class ostream & __thiscall VrmlSFNode::print(class ostream &)const " 
(?print@V .........@@U ............@@A ...@@Z )
error LNK2019: unresolved external symbol "__declspec(dllimport) class 
ostream & __cdecl endl(class ostream &)" 
(__imp_?endl@@Y ...........@@A ...@@Z ) referenced in function "public: virtual 
void __thiscall VrmlNodeMovieTexture::setField(char const *,class VrmlField 
const &)" (?setField@V ...................@@U ..................@@@Z )
error LNK2019: unresolved external symbol "__declspec(dllimport) class 
ostream & __cdecl endl(class ostream &)" 
(__imp_?endl@@Y ...........@@A ...@@Z ) referenced in function "public: virtual 
void __thiscall VrmlNodeViewpoint::setField(char const *,class VrmlField 
const &)" (?setField@V ................@@U ..................@@@Z )
error LNK2019: unresolved external symbol "__declspec(dllimport) class 
ostream_withassign cerr" (__imp_?cerr@@3 ........_withassign@@A ) referenced 
in function "public: virtual void __thiscall 
VrmlNodeMovieTexture::setField(char const *,class VrmlField const &)" 
(?setField@V ...................@@U ..................@@@Z )
error LNK2019: unresolved external symbol "__declspec(dllimport) public: 
__thiscall ios::operator void *(void)const " (__imp_??Bios@@Q .......) 
referenced in function "public: bool __thiscall VrmlScene::save(char const 
*)" (?save@V ........@@Q .._NPBD@Z )
error LNK2019: unresolved external symbol "__declspec(dllimport) public: 
__thiscall ofstream::ofstream(char const *,int,int)" 
(__imp_??0ofstream@@Q ..@P ....@Z ) referenced in function "public: class 
ostream & __thiscall Doc::outputStream(void)" 
(?outputStream@D ..@@Q ............@@X .)
error LNK2019: unresolved external symbol "__declspec(dllimport) public: 
__thiscall ostrstream::ostrstream(void)" (__imp_??0ostrstream@@Q ..@X .) 
referenced in function "int __cdecl toString(struct JSContext *,struct 
JSObject *,unsigned int,long *,long *)" 
(?toString@@Y ..............@@P ..........@@I ....@Z )
error LNK2019: unresolved external symbol "__declspec(dllimport) public: 
char * __thiscall ostrstream::str(void)" (__imp_?str@o .........@@Q .......) 
referenced in function "int __cdecl toString(struct JSContext *,struct 
JSObject *,unsigned int,long *,long *)" 
(?toString@@Y ..............@@P ..........@@I ....@Z )
error LNK2019: unresolved external symbol "__declspec(dllimport) public: 
class ostream & __thiscall ostream::operator<<(char const *)" 
(__imp_??6ostream@@Q ......@P ..@Z ) referenced in function "public: bool 
__thiscall VrmlScene::save(char const *)" (?save@V ........@@Q .._NPBD@Z )
error LNK2019: unresolved external symbol "__declspec(dllimport) public: 
class ostream & __thiscall ostream::operator<<(char)" 
(__imp_??6ostream@@Q ......@D @Z ) referenced in function "public: virtual 
class ostream & __thiscall VrmlSFColor::print(class ostream &)const " 
(?print@V ..........@@U ............@@A ...@@Z )
error LNK2019: unresolved external symbol "__declspec(dllimport) public: 
class ostream & __thiscall ostream::operator<<(class ostream & 
(__cdecl*)(class ostream &))" (__imp_??6ostream@@Q ......@P ......@A ...@@Z @Z ) 
referenced in function "public: virtual class ostream & __thiscall 
VrmlSFNode::print(class ostream &)const " 
(?print@V .........@@U ............@@A ...@@Z )
error LNK2019: unresolved external symbol "__declspec(dllimport) public: 
class ostream & __thiscall ostream::operator<<(class ostream & 
(__cdecl*)(class ostream &))" (__imp_??6ostream@@Q ......@P ......@A ...@@Z @Z ) 
referenced in function "public: virtual void __thiscall 
VrmlNodeMovieTexture::setField(char const *,class VrmlField const &)" 
(?setField@V ...................@@U ..................@@@Z )
error LNK2019: unresolved external symbol "__declspec(dllimport) public: 
class ostream & __thiscall ostream::operator<<(class ostream & 
(__cdecl*)(class ostream &))" (__imp_??6ostream@@Q ......@P ......@A ...@@Z @Z ) 
referenced in function "public: virtual void __thiscall 
VrmlNodeViewpoint::setField(char const *,class VrmlField const &)" 
(?setField@V ................@@U ..................@@@Z )
error LNK2019: unresolved external symbol "__declspec(dllimport) public: 
class ostream & __thiscall ostream::operator<<(double)" 
(__imp_??6ostream@@Q ......@N @Z ) referenced in function "public: virtual 
class ostream & __thiscall VrmlSFTime::print(class ostream &)const " 
(?print@V .........@@U ............@@A ...@@Z )
error LNK2019: unresolved external symbol "__declspec(dllimport) public: 
class ostream & __thiscall ostream::operator<<(float)" 
(__imp_??6ostream@@Q ......@M @Z ) referenced in function "public: virtual 
class ostream & __thiscall VrmlSFColor::print(class ostream &)const " 
(?print@V ..........@@U ............@@A ...@@Z )
error LNK2019: unresolved external symbol "__declspec(dllimport) public: 
class ostream & __thiscall ostream::operator<<(int)" 
(__imp_??6ostream@@Q ......@H @Z ) referenced in function "public: virtual 
class ostream & __thiscall VrmlSFImage::print(class ostream &)const " 
(?print@V ..........@@U ............@@A ...@@Z )
error LNK2019: unresolved external symbol "__declspec(dllimport) public: 
class ostream & __thiscall ostream::operator<<(unsigned int)" 
(__imp_??6ostream@@Q ......@I @Z ) referenced in function "public: virtual 
class ostream & __thiscall VrmlSFImage::print(class ostream &)const " 
(?print@V ..........@@U ............@@A ...@@Z )
error LNK2019: unresolved external symbol "__declspec(dllimport) public: 
class strstreambuf * __thiscall ostrstream::rdbuf(void)const " 
(__imp_?rdbuf@o .........@@Q .................@@X .) referenced in function 
"int __cdecl toString(struct JSContext *,struct JSObject *,unsigned int,long 
*,long *)" (?toString@@Y ..............@@P ..........@@I ....@Z )
error LNK2019: unresolved external symbol "__declspec(dllimport) public: 
void __thiscall ofstream::`vbase destructor'(void)" 
(__imp_??_Dofstream@@Q .....) referenced in function "public: virtual void * 
__thiscall ofstream::`scalar deleting destructor'(unsigned int)" 
(??_Gofstream@@U ......@Z )
error LNK2019: unresolved external symbol "__declspec(dllimport) public: 
void __thiscall ostrstream::`vbase destructor'(void)" 
(__imp_??_Dostrstream@@Q .....) referenced in function "int __cdecl 
toString(struct JSContext *,struct JSObject *,unsigned int,long *,long *)" 
(?toString@@Y ..............@@P ..........@@I ....@Z )
error LNK2019: unresolved external symbol "__declspec(dllimport) public: 
void __thiscall strstreambuf::freeze(int)" 
(__imp_?freeze@s ...........@@Q ....@Z ) referenced in function "int __cdecl 
toString(struct JSContext *,struct JSObject *,unsigned int,long *,long *)" 
(?toString@@Y ..............@@P ..........@@I ....@Z )
error LNK2019: unresolved external symbol __CrtDbgReport referenced in 
function "public: struct IGraphBuilder * * __thiscall ATL::CComPtr<struct 
IGraphBuilder>::operator&(void)" 
(??I?$CComPtr@U .............@@@A ..@@Q ....................@@X .)
fatal error LNK1120: 19 unresolved externals
warning LNK4075: ignoring '/EDITANDCONTINUE' due to '/OPT:ICF' specification

Thank you very much. But unfortunately the new version didn't change 
anything regarding the linker error. I've also had some problems with the VS 
solution file - some projects were 'unavailable' and the include paths were 
not set (and once he was looking for a ARmulti32.lib but that one wasn't 
build - only a libARmulti.lib. but this one wasn't used). But even after I 
rebuild everything I ended up with almost the same linker error than before.

Ich tried it on 2 PCs with VS.NET 2003 (8.0) but it didn't work in both 
cases - VS had to convert the VS.NET 2002 (7.0) solution file, but this 
shouldn't make a difference.

with regards

torbjorn.engedal@n ......... wrote:

>Yes, you're right - I think libVRML has become OpenVRML.
>
>Anyway, I think you should go to
>http://www.hitl.washington.edu/artoolkit/download.htm and download this
>version:
>http://www.hitl.washington.edu/artoolkit/Software/ARToolKit2.65vrml.zip
>
>It is the newest version that uses Thomas Pintaric's camera grabber, and is
>made for VS .NET. There are solution and project files accompanying, which
>should run and compile directly. Just remember to rebuild all of ARToolKit
>before you start building the examples.
>
>Unfortunately, I don't think I can be of more help regardning your linker
>error.
>
>Good luck!
>
>-----------------------------------------------------
>Torbjørn Engedal
>Associated Scientist
>
>ABB AS
>Corporate Research Center
>Bergerveien 12
>NO-1375 Billingstad
>Norway