undefined reference to vtable for …

Question

I am trying to write an Http proxy that basically works like indianwebproxy

So i fired up qtcreator and but one of my classes is failing to compile with the infamous

Answer 1

This is often caused by not linking the files generated by automoc.

First, you need to run automoc on the headers where classes using Q_OBJECT are defined, in your case "httpproxythreadbrowser.h". This will generate a "*.moc" file.

Now there are two common approaches how to continue. Either you can #include the .moc file at the end of your .cpp file with class definition or you can pass it to the compiler as anoher source file.