Pub install failed,  Resolving dependencies... Got socket error trying to find package "browser" at https://pub.dartlang.org
Of course the app was not working, because pub could not resolve the one dependency of this sample project.
This was due to a proxy in my company. The big problem is that Dart Editor does not provide (in M4 at least) a way to configure a proxy. The solution is to run pub manually because it will take into account your env variables. Here is how to do it:
First, the pub server is behing HTTPS and there is a bug (filled here) that will cause https request to fail whatever your configuration is so we will have to use HTTP.
Be sure you have your HTTP_PROXY environment variable defined to your proxy and then go to the hosted_srouce.dart file located here:
Look for the final variable called
_defaultUrl (line 155) and change
final _defaultUrl = "http://pub.dartlang.org";
Now go to your clickme root dir in a terminal and run
The dependency should be resolved and you can now run you app from Dart Editor.