"Unhandled exception:" error

[mikezamayias]

I'm always getting the following output when running dcdg:

Unhandled exception:
FileSystemException: Directory listing failed, path = '/home/mzamayias/Documents/Repositories/glowing-sniffle/Current Courses/Agile Programming/Assignments/Assignment 2/dart/simple_hearts_game/lib/' (OS Error: No such file or directory, errno = 2)
#0 _Directory._fillWithDirectoryListing (dart:io-patch/directory_patch.dart:37:68)
#1 _Directory.listSync (dart:io/directory_impl.dart:243:5)
#2 findClassElements (package:dcdg/src/find_class_elements.dart:35:8)
#3 main (file:///home/mzamayias/.pub-cache/hosted/pub.dartlang.org/dcdg-2.0.1/bin/dcdg.dart:28:25)
#4 _startIsolate. (dart:isolate-patch/isolate_patch.dart:299:32)
#5 _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:168:12)

Am I doing something wrong? I've followed the instructions for installation and usage. Also, as this my first Issue report on GitHub, am I doing it right?

[glesica]

Interesting. Could you try it on a path that doesn't have any spaces? I've seen Dart get cranky about that before.

[mikezamayias]

I've copied the project to Desktop/ and tried dcdg -o 'uml.puml' and pub global run dcdg -o 'uml.puml' with both giving the same Unhandled exception: FileSystemException: Directory listing failed.

I'm checking again how to use dcdg and I'm curious, on which file should I import the package, on all of them or just on the "main".dart? I've got each class on a separate file. Could this cause the error?

[glesica]

Oh, I think I see. You don't import DCDG into your project, you run it on your source code. Do you have a lib/ directory in your project? DCDG assumes that you are using a standard Dart package layout, which includes a lib/ directory (where your code lives).

[mikezamayias]

Turns out my project was not in a package layout. After some tinkering I had a Dart package that would run successfully, then tried pub global run dcdg -o 'uml.puml' and voilà, I had the uml.puml for my classes. Thanks a lot!