QT 5 QPrinter linq error

Question

I use QT 5.1.1 and Qt Creator 2.8.1
I want use printer:

QPrinter printer(QPrinter::HighResolution);
    QPrintDialog printdialog(&printer,this);

    if (printdialog.exec() == QDialog::Accepted)
    {
        QTextDocument doc;
        doc.setHtml(s);
        doc.print(&printer);
    }

And I get this error:

DictionaryWidget.obj:-1: error: LNK2019: unresolved external symbol "__declspec(dllimport) public: _thiscall QPrinter::QPrinter(enum QPrinter::PrinterMode)" (_imp_??0QPrinter@@QAE@W4PrinterMode@0@@Z) referenced in function "private: void __thiscall DictionaryWidget::on_pbPrint_clicked(void)" (?on_pbPrint_clicked@DictionaryWidget@@AAEXXZ)

in .pro file I have:

QT       += core gui xml printsupport

to build Environment in QT Creator LIBPATH as follows:

libpath: C:\Windows\Microsoft.NET\Framework64\v4.0.30319;C:\Windows\Microsoft.NET\Framewo‌​rk64\v3.5;C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\LIB\amd64;C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\ATLMFC\LIB\amd64;C:\Program Files (x86)\Windows Kits\8.0\References\CommonConfiguration\Neutral;C:\Program Files (x86)\Microsoft SDKs\Windows\v8.0\ExtensionSDKs\Microsoft.VCLibs\11.0\References\CommonConfigura‌​tion\neutral;C:\Qt\5.1.1\msvc2012\lib;

In the folder C:\Qt\5.1.1\msvc2012\lib file is located Qt5PrintSupport.lib

What should I do to make the project work?