So if I add break points in .dart files that are located in /web directory of my project, it works fine. For example I\'m using AngularDart and the main.dart file works. How
To set breakpoints in dependencies search the source inside the (no domain) node and set the breakpoint there. Breakpoints don't hit when set somewhere in the packages node.
You can also use the breakpoint statement for the debugger top pop up. See Does Dart have a 'breakpoint' statement? for more details.