Import files from other folders (parallel folders) in Dart. How to?

How can I import (NOT part/partOf) dart files from parallel folders?
|lib/src/myLib.dart
|web/myProg.dart     How can myProg import myLib ?
DartEditor have some problems in parsing URI:s.. i think..?

?? import '/C:/Users/Public/daw_pubtest/...'  lol   seems strange!  I have tried several hours to guess, how this is done. NEVER would have guessed this /C:   -thing.

http://stackoverflow.com/questions/12951989/how-to-reference-another-file-in-dart
Here.. in second answer was this:

import 'someDartFile.dart';

If you have on Windows a library at: K:\SomeDir\someFile.dart you will need to write:

import '/K:/SomeDir/someFile.dart';

http://stackoverflow.com/questions/12325488/importing-library-in-dart-on-windows
This page have same kind of answer.

Problems rise:  My heart is aching.  My mind is cloudy.  Coffee dont taste as it should.
Use this solution?  Is it nice?  Do's it work in my dawo package?
More reading:  Read these again.  Read issues.   7 webpages talk the same thing. Read.
Do.  Try it in your dawo package.. even if coffee tastes bad :(
Be a man..  and put all your 147 files in same folder :(
Read;  Pub layout conventions.. lib/src
Study other packages; How they did it.
Live in hope, that you are dumb.  I hope I have missed something very obvious. I confess, that I am not very eager to read instructions...
But I can use it test and example folder also.

I really hope that it is not this difficult.  If beginning Windows users must do this, so it is very big misery.
x   Waiting for better solution...
This can also be a security measure.. you can't let Dart mess freely in users folders..?