Toolbar images not displayed

I can’t get icons displayed in the toolbar items although I verified the path in the setIconsPath function.
My script:
toolbar1=layout3.attachToolbar();
toolbar1.setIconsPath(“common/imgs”);
toolbar1.addText(“x”, 2, “New One”);
toolbar1.addButton(“open”, 1, “”, “open.gif”, “open_dis.gif”);

Please help

We need the completed demo to reproduce the problem locally.