Log4cplus link error 2001 in VS2013

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I ensure that i compiled log4cplus project as Dynamic Lib with Unicode charset(Debug_Unicode) and my own test project also had been set to Unicode charset. Both of them compiled under debug model. I have read many similar questions but still cannot resolve this problem... Following is my test code :

#include "Include/log4cplus/loggingmacros.h"
#include "Include/log4cplus/configurator.h"
#include "Include/log4cplus/helpers/loglog.h"
#include "Include/log4cplus/helpers/stringhelper.h"
#include "Include/log4cplus/helpers/fileinfo.h"
#include "Include/log4cplus/loggingmacros.h"
#include "Include/log4cplus/initializer.h"
#pragma comment(lib, "log4cplusUD.lib")
using namespace std;
using namespace log4cplus;
using namespace log4cplus::helpers;
int main(int argc, wchar_t* argv[])
{

    cout << LOG4CPLUS_TEXT("Entering main()...") << endl;
    log4cplus::Initializer initializer;
    LogLog::getLogLog()->setInternalDebugging(true);
    Logger root = Logger::getRoot();
    try {
        PropertyConfigurator::doConfigure(LOG4CPLUS_TEXT("E:\\log4cplus.properties"));
        Logger fileCat = Logger::getInstance(LOG4CPLUS_TEXT("filelogger"));

        LOG4CPLUS_WARN(root, LOG4CPLUS_TEXT("Testing...."));
        LOG4CPLUS_WARN(root, LOG4CPLUS_TEXT("Writing messages to log...."));
        for (int i = 0; i<10000; ++i)
            LOG4CPLUS_WARN(fileCat, LOG4CPLUS_TEXT("This is a WARNING...")
            << i);

        // Test that DOS EOLs in property files get removed.
#define TEST_TEXT LOG4CPLUS_TEXT ("this is a test with DOS EOL-->")
        tistringstream propsStream(
            LOG4CPLUS_TEXT("text=") TEST_TEXT LOG4CPLUS_TEXT("\r\n"));
        Properties props(propsStream);
        LOG4CPLUS_ASSERT(root,
            props.getProperty(LOG4CPLUS_TEXT("text")) == TEST_TEXT);
    }
    catch (...) {
        tcout << LOG4CPLUS_TEXT("Exception...") << endl;
        LOG4CPLUS_FATAL(root, LOG4CPLUS_TEXT("Exception occured..."));
    }
http://www.codeproject.com/Questions/ask.aspx#
    cout << LOG4CPLUS_TEXT("Exiting main()...") << endl;
    return 0;
}

I'm just copy this code from "propertyconfig_test" in log4cplus, the lib and dll file is also compiled with "Debug_Unicode",when I compiled my own test project then a link error occurs:

  error LNK2001: unresolved external symbol "class std::basic_ostream<wchar_t,struct std::char_traits<wchar_t=""> > & log4cplus::tcout"
(?tcout@log4cplus@@3AAV?$basic_ostream@_WU?$char_traits@_W@std@@@std@@A)
       E:\TestCode\1026(thttpd)\thttpd\thttpd\thttpd.obj   thttpd

Just now,I found that if I comment these sentences which include the "tcout" function,then everything is OK,This example about propertyconfig_test works well,why?

What I have tried:

Try each compiled model and charset,read lots of similar questions