How can i add custom build steps in Qt-Creator?

After build my app, i want copy it to specific directory (on Windows 7).

Custom build step

cmd.exe \c \k copy MyPlugin.dll ..\..\..\HostApp\Debug\plugins

But I have error:

Can't r开发者_如何学Pythonun process "cmd.exe \c \k copy MyPlugin.dll ..\..\..\HostApp\Debug\plugins"

That's wrong?

One way to do it would be to change the build output directory in the .pro file. Something like

CONFIG(debug, debug|release) {
    DESTDIR = C:/myApp/debug
} else {
    DESTDIR = C:/myApp/release
}

Or in your particular case

CONFIG(debug, debug|release) {
    DESTDIR = ..\..\..\HostApp\Debug\plugins
} else {
    DESTDIR = ..\..\..\HostApp\Release\plugins
}

Edit: This question has some good alternatives to my answer.