Question

Error with linking

Asked by: gen12324

May i know how to solve this error? I already have all set all the linking but do not know what causes this error..

1>blob detection with magnifier.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __thiscall std::_Container_base_secure::~_Container_base_secure(void)" (__imp_??1_Container_base_secure@std@@QAE@XZ) referenced in function "protected: __thiscall std::_Container_base_aux_alloc_empty<class std::allocator<struct std::pair<unsigned int const ,struct blob> > >::~_Container_base_aux_alloc_empty<class std::allocator<struct std::pair<unsigned int const ,struct blob> > >(void)" (??1?$_Container_base_aux_alloc_empty@V?$allocator@U?$pair@$$CBIUblob@@@std@@@std@@@std@@IAE@XZ)
1>blob detection with magnifier.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: void __thiscall std::_Container_base_secure::_Orphan_all(void)const " (__imp_?_Orphan_all@_Container_base_secure@std@@QBEXXZ) referenced in function "protected: void __thiscall std::vector<class std::vector<struct lineBlob,class std::allocator<struct lineBlob> >,class std::allocator<class std::vector<struct lineBlob,class std::allocator<struct lineBlob> > > >::_Tidy(void)" (?_Tidy@?$vector@V?$vector@UlineBlob@@V?$allocator@UlineBlob@@@std@@@std@@V?$allocator@V?$vector@UlineBlob@@V?$allocator@UlineBlob@@@std@@@std@@@2@@std@@IAEXXZ)
1>blob detection with magnifier.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __thiscall std::_Container_base_secure::_Container_base_secure(void)" (__imp_??0_Container_base_secure@std@@QAE@XZ) referenced in function "protected: __thiscall std::_Container_base_aux_alloc_empty<class std::allocator<class std::vector<struct lineBlob,class std::allocator<struct lineBlob> > > >::_Container_base_aux_alloc_empty<class std::allocator<class std::vector<struct lineBlob,class std::allocator<struct lineBlob> > > >(class std::allocator<class std::vector<struct lineBlob,class std::allocator<struct lineBlob> > >)" (??0?$_Container_base_aux_alloc_empty@V?$allocator@V?$vector@UlineBlob@@V?$allocator@UlineBlob@@@std@@@std@@@std@@@std@@IAE@V?$allocator@V?$vector@UlineBlob@@V?$allocator@UlineBlob@@@std@@@std@@@1@@Z)
1>C:\Documents and Settings\biob202\Desktop\ax fyp\blob detection with magnifier\Debug\blob detection with magnifier.exe : fatal error LNK1120: 3 unresolved externals
1>Build log was saved at "file://c:\Documents and Settings\biob202\Desktop\ax fyp\blob detection with magnifier\blob detection with magnifier\Debug\BuildLog.htm"
1>blob detection with magnifier - 4 error(s), 0 warning(s)
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

                                  
1:
2:
3:
4:
5:
6:
7:

Select allOpen in new window

This Question has been solved and asker verified All Experts Exchange premium technology solutions are available to subscription members.

Subscribe now for full access to Experts Exchange and get

Instant Access to this Solution

  • Plus...
  • 30 Day FREE access, no risk, no obligation
  • Collaborate with the world's top tech experts
  • Unlimited access to our exclusive solution database
  • Never be left without tech help again

Subscribe Now

Asked On
2009-08-12 at 01:08:42ID24645711
Topics

Algorithms

,

Microsoft Visual C++

,

C++ Programming Language

Participating Experts
2
Points
500
Comments
12

Trusted by hundreds of thousands everyday for fast, accurate and reliable tech support.

  • "The time we save is the biggest benefit of Experts Exchange to Warner Bros. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange." Mike Kapnisakis, Warner Bros.
  • "Our team likes having a resource that is more secure than just using Google and most experts using this service really know their stuff. It's nice to look here first versus using Google." Dayna Sellner, Lockheed Martin
  • "Anytime that I've been stumped with a problem, 9 out of 10 times Experts Exchange has either the accepted solution or an open discussion of the potential solution to the problem." Kenny Red, eBay Inc.

See what Experts Exchange can do for you.

Got a question?

We've got the answer.

Experts Exchange has been collecting answers to technology questions since 1996…3 million and counting! If you have a question, chances are we already have your answer.

Screenshot of Experts Exchange Knowledgebase

Need individual assistance?

Our experts are ready to help.

If you can't find the exact answer you're looking for, ask our exclusive community of 50,000 experts. You’ll get a personalized answer from a trusted professional.

Screenshot of Experts Exchange Knowledgebase

Want to learn from the best?

Read articles from industry experts.

Thousands of free tech tips, tricks, how-to’s and tutorials are available in our peer reviewed articles section. See for yourself how smart our experts are, no login required.

Screenshot of an Article

Working on a long term project?

Store your work and research.

Save solutions to your questions, answers you’ve discovered through searching plus helpful articles in your personal knowledgebase for easy future access.

Screenshot of Experts Exchange Knowledgebase

Access the answers to your technology questions today.

Subscribe Now

30-day free trial. Register in 60 seconds.

What Makes Experts Exchange Unique?

Members of the expert community talk about why the experience at Experts Exchange is different than what you will find anywhere else.

Trusted by the world's most respected brands.

image of each brand's logo

Faithfully serving IT professionals since 1996.

Experts Exchange Logo

Try it out and discover for yourself.

Subscribe Now

30-day free trial. Register in 60 seconds.

Related Solutions

  1. Link errors
    We're frequently running into these linkage errors and haven't been able to track the problem down. If anyone else has run into this and solved it, we'd sure like to know. A couple of us here have already checked the obvious....all our libraries are compiled multi-threaded....
  2. linking error 2005
    hi , i get this linking error when i build ReleaseMinDependency of my ATL : _exit already defined in MSVCRT.lib(MSVCRT.dll) and so on ... 11 errors like this . this problem was caused when i created a new static lib that contains some utilities that i need and staticly lin...
  3. LINK error
    I have a MFC window-based application with some of my own classes added to it. As I try to build the .exe, I got the following Link-error: Linking... nafxcwd.lib(afxmem.obj) : error LNK2005: "void __cdecl operator delete(void *)" (??3@YAXPAX@Z) already defined in ...
  4. link error
    Linking... dxdraw.obj : error LNK2001: unresolved external symbol __imp__timeGetTime@0 Debug/PROGRAM.exe : fatal error LNK1120: 1 unresolved externals i used the timeGetTime function n got this link error how do i solve this thanx

Free Tech Articles

  1. WARNING: 5 Reasons why you should NEVER fix a computer for free.
    It is in our nature to love the puzzle. We are obsessed. The lot of us. We love puzzles. We love the challenge. We thrive on finding the answer. We hate disarray. It bothers us deep in our soul. W...
  2. SCCM OSD Basic troubleshooting
    SCCM 2007 OSD is a fantastic way to deploy operating systems, however, like most things SCCM issues can sometimes be difficult to resolve due to the sheer volume of logs to sift through and the dispe...
  3. Migrate Small Business Server 2003 to Exchange 2010 and Windows 2008 R2
    This guide is intended to provide step by step instructions on how to migrate from Small Business Server 2003 to Windows 2008 R2 with Exchange 2010. For this migration to work you will need the fo...
  4. Create a Win7 Gadget
    This article shows you how to create a simple "Gadget" -- a sort of mini-application supported by Windows 7 and Vista. Gadgets can be dropped anywhere on the desktop to provide instant information, ...
  5. Outlook continually prompting for username and password
    There have been a lot of questions recently regarding Outlook prompting for a username and password whilst using Exchange 2007. There are a few reasons why this would happen and I will try to cover t...
  6. Backup Exchange 2010 Information Store using Windows Backup
    There seems to be quite a lot of confusion around the ability to backup Exchange 2010 using the built in Windows Backup feature. This stems from the omission of this feature prior to Exchange 2007 s...

Cloud Class Webinars

  1. Avoiding Bugs in Microsoft Access
    Alison Balter takes and in-depth look at avoiding bugs in Access. In this webinar you will learn about using the immediate window to debug your applications, invoking the debugger, using breakpoints to troubleshoot, stepping through code, setting the next statement to execute, ...
  2. Top 10 Best New Features in Visio 2010
    Scott Helmers gives live demonstrations of the top 10 new features in Visio 2010. This webinar will teach you how to create compelling diagrams by adding shapes to the page with a single click, linking the shapes in a diagram to data in Excel (or SQL Server, or SharePoint), ...
  3. IT Consultant Business Secrets Revealed
    Michael Munger, Experts Exchange tech pro and IT consultant, pulls back the curtain on his very successful businesses and answers question on every IT consultant and business owner should know about. He shares secrets on what he did to solve the 5 most common problems in IT, ...
  4. Disaster Recovery and Business Continuity
    Quest CTO, Mike Billon, gives an overview of the steps involved in building a dunamic disaster recovery plan. Through case studies and an examination of software/hardware tooles for monitoring and testing, you'll gain a better understandin of where you are, where you want ...
  5. Organize Your Visio Diagrams with Containers and Lists
    Scott Helmers uses cross functional flowcharts, wireframe diagrams, data graphic legends and seating charts to teach you: how to ustilize all three new structured diagram components in Visio 2010, the best practices for organizeing shapes in previous version of Visio, how to organize ...
  6. How to Us Objects, Properties, Events and Methods in Microsoft Access
    Alison Dalter gives an in-depbth look at objects, properties, events and methods in Microsoft Access. In this webinar you will learn about using the object browser, referring to objects, working with properties and methods, working with object variables, understanding the ...

Join the Community

Give a Little. Get a Lot.

Join the community of experts here and help other tech pros by answering question in your area of expertise. You can earn FREE access to all Experts Exchange's premium features and resources.

Join the Community

Answers

 

by: flob9Posted on 2009-08-12 at 02:05:05ID: 25076845

Do you use any third party library ?

In this case, you need to add it in the linker/input/additionnal dependencies setting of the project ( thelibrary.lib)

 

by: itsmeandnobodyelsePosted on 2009-08-12 at 03:44:59ID: 25077332

>>>> magnifier.obj
Do you know where the magnifier.obj comes from? Is it from your own sources?

The linker error is about STL container classes. These symbols should be fully generated when compiling the objects as STL is a template library where all code comes from header files instantiated with the types you actually were using, i. e. you doesn't need any additional libraries but the compiler should have generated all symbols.

Some years ago I had a  similar linker error and it was because of mixing different STL versions.

 

by: gen12324Posted on 2009-08-12 at 03:56:21ID: 25077380

hmm.. im not too sure. third library as in?

 

by: gen12324Posted on 2009-08-12 at 22:00:16ID: 25085539

What does STL stands for? I guess i will create an new project again and build it again.

Previously i did not create new project rather than i use other source code and paste it onto the same project again. Maybe because of that .obj got mix up?

 

by: itsmeandnobodyelsePosted on 2009-08-13 at 01:31:28ID: 25086290

>>>> What does STL stands for?
It means Standard Template Library and is a bunch of template classes (mostly containers like vector, map, basic_string ...) and template functions which make up an important part of the C++ standard. As it is templates there are no cpp files involved but only header files. When including the headers and using any of the classes in your sources the templates will be instantiated with the concrete template type you were using.

The error message you got means that the module magnifier.cpp (probably a .cpp) was compiled and the compiler has added a reference to "__declspec(dllimport) public: __thiscall std::_Container_base_secure::~_Container_base_secure(void)" what is the destructor of the STL helper class  Container_base_secure. But, if such a destructor really was needed, the object code for it should have been added by the compiler as well. Instead it has added an "external symbol" reference what means that the destructor should be provided by another object or libray file (what rarely makes sense for STL code).

I assume there is a mistake in either using different versions of STL in different libraries or in the interface to or from a dll there is a STL object passed by value or needs an implicit construction/destruction as there is some default value in the argument list. It also can happen by mixing up import and export specifiers in the declaration.

       

 

by: flob9Posted on 2009-08-13 at 01:31:31ID: 25086291

You can try to rebuild solution, or clean & build.

 

by: gen12324Posted on 2009-08-13 at 01:49:21ID: 25086384

still cannot... i still got the error.

 

by: gen12324Posted on 2009-08-13 at 01:50:24ID: 25086389

This is the error

1>------ Build started: Project: blob detection, Configuration: Debug Win32 ------
1>Linking...
1>blob detection.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __thiscall std::_Container_base_secure::~_Container_base_secure(void)" (__imp_??1_Container_base_secure@std@@QAE@XZ) referenced in function "protected: __thiscall std::_Container_base_aux_alloc_empty<class std::allocator<struct std::pair<unsigned int const ,struct blob> > >::~_Container_base_aux_alloc_empty<class std::allocator<struct std::pair<unsigned int const ,struct blob> > >(void)" (??1?$_Container_base_aux_alloc_empty@V?$allocator@U?$pair@$$CBIUblob@@@std@@@std@@@std@@IAE@XZ)
1>blob detection.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: void __thiscall std::_Container_base_secure::_Orphan_all(void)const " (__imp_?_Orphan_all@_Container_base_secure@std@@QBEXXZ) referenced in function "protected: void __thiscall std::vector<class std::vector<struct lineBlob,class std::allocator<struct lineBlob> >,class std::allocator<class std::vector<struct lineBlob,class std::allocator<struct lineBlob> > > >::_Tidy(void)" (?_Tidy@?$vector@V?$vector@UlineBlob@@V?$allocator@UlineBlob@@@std@@@std@@V?$allocator@V?$vector@UlineBlob@@V?$allocator@UlineBlob@@@std@@@std@@@2@@std@@IAEXXZ)
1>blob detection.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __thiscall std::_Container_base_secure::_Container_base_secure(void)" (__imp_??0_Container_base_secure@std@@QAE@XZ) referenced in function "protected: __thiscall std::_Container_base_aux_alloc_empty<class std::allocator<class std::vector<struct lineBlob,class std::allocator<struct lineBlob> > > >::_Container_base_aux_alloc_empty<class std::allocator<class std::vector<struct lineBlob,class std::allocator<struct lineBlob> > > >(class std::allocator<class std::vector<struct lineBlob,class std::allocator<struct lineBlob> > >)" (??0?$_Container_base_aux_alloc_empty@V?$allocator@V?$vector@UlineBlob@@V?$allocator@UlineBlob@@@std@@@std@@@std@@@std@@IAE@V?$allocator@V?$vector@UlineBlob@@V?$allocator@UlineBlob@@@std@@@std@@@1@@Z)
1>C:\Documents and Settings\biob202\Desktop\ax fyp\blob detection\Debug\blob detection.exe : fatal error LNK1120: 3 unresolved externals
1>Build log was saved at "file://c:\Documents and Settings\biob202\Desktop\ax fyp\blob detection\blob detection\Debug\BuildLog.htm"
1>blob detection - 4 error(s), 0 warning(s)
                                              
1:
2:
3:
4:
5:
6:
7:
8:

Select allOpen in new window

 

by: gen12324Posted on 2009-08-17 at 08:50:40ID: 25115638

Anyway i solved the error already. Is there a way to detect blob in red in colour? Let's say like something moving then the blob will be red in colour.

I used a source code but it only appear to detect light object.

For example, live webcam , when i show the webcam to the lights, it will only detect the light..

 

by: gen12324Posted on 2009-08-17 at 18:54:28ID: 31614654

Hey can you help me on blob? i need it urgently by today. Thanks

 

by: itsmeandnobodyelsePosted on 2009-08-18 at 00:41:03ID: 25120769

>>>> Anyway i solved the error already.
Can you tell what you've done to solve the error?

>>>> Hey can you help me on blob?
Hmm. 'blob' normally means 'binary large object' what is an expression for a data field stored in a database which contains a big amount of raw (binary) data, e. g. from an image or data from a file.

You seem to use the name 'blob' for some object (part) of an image which can be detected by analytical methods.

 

by: gen12324Posted on 2009-08-18 at 03:53:25ID: 25121746

yes. I guess i rebuild it throught c++ 6.0. Can you help me on the blob? i need it urgently. Right now i got one blob detection but it does not seems to have threshold.

Look at: http://www.experts-exchange.com/Programming/Languages/.NET/Visual_CPP/Q_24660422.html

20120131-EE-VQP-002

3 Ways to Join

30-Day Free Trial

The Experts

98% positive feedback on 31,087 answers since March 2000. angeliii is a Microsoft Most Valuable Professional for his work with MS SQL Server & Develoment.

He has also proven his knowledge of Visual Basic Programming, PHP Scripting and Oracle Databases.

The Experts

97% positive feedback on 10,752 answers since July 2000. lrmoore has more than 18 years experience in the networking industry.

The six-time Mircosoft MVPs specialties include firewalls, virtual private networking, and network management.

Testimonials

"...and excellent source for support... Kind of like having your very own IT dept." Electriciansnet

Testimonials

"I was apprehensive at signing up at first. However... it has already made my life as an IT administrator much easier." JaCrews

Testimonials

"WOW! You guys have great, active, and knowledgeable people on here." moore50

Business Clients

Business Clients

In the Press

"If you’ve got a question... Experts Exchange can supply an answer.”

In the Press

"...an invaluable aid for both IT professionals and those who require tech support."

In the Press

"where IT professionals provide quick answers on just about any topic"

Business Account Plans

Loading Advertisement...