Program crash

[Pragya]

Hi all,
I am having the following pro file

TEMPLATE = lib
TARGET = myplugin
HEADERS = myplugin.h
SOURCES = myplugin.cpp
QT += sql
QT += gui
CONFIG += qt plugin


In the class implementation when i am trying to create any object say qDebug, it crashes.


bool myplugin:: open( )
{
qDebug() << "error" ; // crashes
return true;
}

even I tried creating QMessageBox , the program crashes.
Can anyone sort out my problem.