Freeze sample build error

hello, I want to run the freeze sample in manual 21.3.5.
but I get some build error. It look like a STL error. but others sample
work fine.
have any advice to me?

// myfreeze.cpp : Defines the entry point for the console application.
//

//#include "stdafx.h"

#include "Freeze/Freeze.h"
#include "StringIntMap.h"

using namespace std;
int
main(int argc, char* argv[])
{
// Initialize the Communicator.
//
Ice::CommunicatorPtr communicator =
Ice::initialize(argc, argv);
// Create a Freeze database connection.
//
Freeze::ConnectionPtr connection =
Freeze::createConnection(communicator, "db");
// Instantiate the map.
//
StringIntMap map(connection, "simple");
// Clear the map.
//
map.clear();
Ice::Int i;
StringIntMap::iterator p;
// Populate the map.
//
for (i = 0; i < 26; i++) {
std::string key(1, 'a' + i);
map.insert(make_pair(key, i));
}
// Iterate over the map and change the values.
//
for (p = map.begin(); p != map.end(); ++p)
p.set(p->second + 1);
// Find and erase the last element.
//
p = map.find("z");
assert(p != map.end());
map.erase(p);
// Clean up.
//
connection->close();
communicator->destroy();
return 0;
}

---

Configuration: myfreeze - Win32 Debug

---

Linking...
myfreeze.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __thiscall _STL::basic_string<char,class _STL::char_traits<char>,class _STL::allocator<char> >::basic_string<char,class _STL::char_traits<char>,class _STL::alloc
ator<char> >(int,int)" (__imp_??0?$basic_string@DV?$char_traits@D@_STL@@V?$allocator@D@2@@_STL@@QAE@HH@Z)
Debug/myfreeze.exe : fatal error LNK1120: 1 unresolved externals
Error executing link.exe.

myfreeze.exe - 2 error(s), 0 warning(s)