Error in building project for symbian devices

Hi all,
I am new to QT. I have just started the development using the QT SDK 1.2.1 I followd the getting started guide to build the hello world example both for simulator and symbian devices. For the emulator, the build was successful and it ran successfully. However whe I try to build for symbian devices, I get the following errors
[CODE]
14:48:26: Starting: "F:\QtSDK\Symbian\SDKs\Symbian3Qt474\epoc32\tools\make.exe" release-gcce -w
make.exe: Entering directory `F:/Qtprojects/NewTest'
sbs -c arm.v5.urel.gcce4_4_1
qt-tools : F:\Qtprojects\NewTest\moc\moc_qmlapplicationviewer.cpp [arm.v5.urel.gcce4_4_1]
mifconv : BITMAP [arm.v5.urel.gcce4_4_1]
resource : epoc32\build\newtest\c_a41b85c31e27897d\NewTest_exe\NewTest_NewTest.rsc [arm.v5.urel.gcce4_4_1]
resource : epoc32\build\newtest\c_a41b85c31e27897d\NewTest_reg_exe\NewTest_reg_NewTest_reg.rsc [arm.v5.urel.gcce4_4_1]
compile : main.cpp [arm.v5.urel.gcce4_4_1]
In file included from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/epoc32/include/e32cmn.h:1114,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/epoc32/include/e32std.h:25,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtCore/qatomic_symbian.h:46,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtCore/qatomic_arch.h:86,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtCore/qbasicatomic.h:227,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtCore/qatomic.h:46,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtCore/qbytearray.h:45,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtCore/qstring.h:46,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtCore/qobject.h:48,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtCore/qcoreapplication.h:45,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtGui/qapplication.h:45,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtGui/QApplication:1,
from F:/Qtprojects/NewTest/main.cpp:1:
F:/QtSDK/Symbian/SDKs/Symbian3Qt474/epoc32/include/e32des8.h:224: note: the mangling of 'va_list' has changed in GCC 4.4
In file included from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/epoc32/include/e32cmn.h:6794,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/epoc32/include/e32std.h:25,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtCore/qatomic_symbian.h:46,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtCore/qatomic_arch.h:86,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtCore/qbasicatomic.h:227,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtCore/qatomic.h:46,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtCore/qbytearray.h:45,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtCore/qstring.h:46,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtCore/qobject.h:48,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtCore/qcoreapplication.h:45,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtGui/qapplication.h:45,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtGui/QApplication:1,
from F:/Qtprojects/NewTest/main.cpp:1:
F:/QtSDK/Symbian/SDKs/Symbian3Qt474/epoc32/include/e32cmn.inl: In member function 'SSecureId::operator const TSecureId&() const':
F:/QtSDK/Symbian/SDKs/Symbian3Qt474/epoc32/include/e32cmn.inl:7109: warning: returning reference to temporary
F:/QtSDK/Symbian/SDKs/Symbian3Qt474/epoc32/include/e32cmn.inl: In member function 'SVendorId::operator const TVendorId&() const':
F:/QtSDK/Symbian/SDKs/Symbian3Qt474/epoc32/include/e32cmn.inl:7149: warning: returning reference to temporary
In file included from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/epoc32/include/stdapis/stlportv5/stl/_num_put.h:194,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/epoc32/include/stdapis/stlportv5/stl/_ostream.c:26,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/epoc32/include/stdapis/stlportv5/stl/_ostream.h:385,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/epoc32/include/stdapis/stlportv5/stl/_string_io.h:23,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/epoc32/include/stdapis/stlportv5/string:38,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtCore/qstring.h:60,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtCore/qobject.h:48,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtCore/qcoreapplication.h:45,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtGui/qapplication.h:45,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtGui/QApplication:1,
from F:/Qtprojects/NewTest/main.cpp:1:
F:/QtSDK/Symbian/SDKs/Symbian3Qt474/epoc32/include/stdapis/stlportv5/stl/_num_put.c: In function '_OutputIter stlp_priv::__copy_integer_and_fill(const _CharT*, ptrdiff_t, _OutputIter, int, std::streamsize, _CharT, _CharT, _CharT)':
F:/QtSDK/Symbian/SDKs/Symbian3Qt474/epoc32/include/stdapis/stlportv5/stl/_num_put.c:162: warning: suggest parentheses around '&&' within '||'
In file included from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/epoc32/include/stdapis/stlportv5/stl/_istream.h:355,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/epoc32/include/stdapis/stlportv5/stl/_string_io.h:27,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/epoc32/include/stdapis/stlportv5/string:38,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtCore/qstring.h:60,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtCore/qobject.h:48,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtCore/qcoreapplication.h:45,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtGui/qapplication.h:45,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtGui/QApplication:1,
from F:/Qtprojects/NewTest/main.cpp:1:
F:/QtSDK/Symbian/SDKs/Symbian3Qt474/epoc32/include/stdapis/stlportv5/stl/_istream.c: In function 'std::streamsize stlp_priv::__read_buffered(std::basic_istream<_CharT, _Traits>*, std::basic_streambuf<_CharT, _Traits>*, std::streamsize, _CharT*, _Is_Delim, _Scan_Delim, bool, bool, bool)':
F:/QtSDK/Symbian/SDKs/Symbian3Qt474/epoc32/include/stdapis/stlportv5/stl/_istream.c:650: warning: suggest parentheses around '&&' within '||'

compile : moc\moc_qmlapplicationviewer.cpp [arm.v5.urel.gcce4_4_1]
In file included from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/epoc32/include/e32cmn.h:1114,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/epoc32/include/e32std.h:25,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtCore/qatomic_symbian.h:46,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtCore/qatomic_arch.h:86,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtCore/qbasicatomic.h:227,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtCore/qatomic.h:46,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtCore/qbytearray.h:45,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtCore/qstring.h:46,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtCore/qdatetime.h:45,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtDeclarative/qdeclarativeview.h:45,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtDeclarative/QDeclarativeView:1,
from F:/Qtprojects/NewTest/moc/../qmlapplicationviewer/qmlapplicationviewer.h:14,
from F:/Qtprojects/NewTest/moc/moc_qmlapplicationviewer.cpp:10:
F:/QtSDK/Symbian/SDKs/Symbian3Qt474/epoc32/include/e32des8.h:224: note: the mangling of 'va_list' has changed in GCC 4.4
In file included from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/epoc32/include/e32cmn.h:6794,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/epoc32/include/e32std.h:25,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtCore/qatomic_symbian.h:46,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtCore/qatomic_arch.h:86,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtCore/qbasicatomic.h:227,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtCore/qatomic.h:46,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtCore/qbytearray.h:45,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtCore/qstring.h:46,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtCore/qdatetime.h:45,
from F:/QtSDK/Symbian/SDKs/Symbian3Qt474/include/QtDeclarative/qdeclarativeview.h:45,

......

Run time 11 seconds

sbs: build log in F:\QtSDK\Symbian\SDKs\Symbian3Qt474\epoc32\build\Makefile.2012-09-20-14-48-27.2-5644.log
make.exe: Leaving directory `F:/Qtprojects/NewTest'
14:48:38: The process "F:\QtSDK\Symbian\SDKs\Symbian3Qt474\epoc32\tools\make.exe" exited normally.
[/CODE]
I want to know how to correct these errors. Please help me out.
thanks and regards,
kumarsai