Please Help, QTcpSocket class use

[aash_89]

hello, i am new to Qt. i am trying to implement a client server application.



i get error messages for one line of code!!





this is my code.



i have included the <QtNetwork/QTcpSocket> class



code:



QTcpSocket socket;

socket.connectToHost("Local Host",5000);





thats it.



i am using qt creator 4.6, with the option to design UI interface too.



these are the errors



undefined reference to '_imp__ZN10QTcpSocketC1EP7QObject'

similar to the above 10 errors!



please help!!