It seems you are running with "home/myuser/dart/playground/bin/list_equality/packages" as the package directory. It is probably chosen as the default because you haven't specified a package-root.

Are you running this from the editor?

Can you pass an explicit package root to the VM:
  dart --package-root=/home/myuser/dart/playground/bin/packages mypackage/bin/list_equality/main.dart
?

Added Area-Editor, NeedsInfo labels.
Changed the title to: "Cannot find package when running file in subdirectory.".

This comment was originally written by @zoechi

Your are right, when I run it from command line with --packages-root it works

dart --package-root=packages bin/list_equality/main.dart # works
dart bin/list_equality/main.dart #fails, I expected this to work
I understand that
main.dart #from within bin/list_equality may not work

From Darteditor context menu 'run' fails
A launch configuration would probably help?
I expected this to work without though, shouldn't is?

Set owner to @keertip.
Added this to the 1.3 milestone.
Removed Priority-Unassigned label.
Added Priority-Medium, Triaged labels.

@gzoechi,

To specify package root in the editor, context menu for project in the Files View > Properties > Dart > Package Root settings. Once you set that, the launch will pick it up and it should run fine. The default is to look in the project for a packages directory.

This comment was originally written by @zoechi

@kertip

I'm not convinced that this is a solution.

I have the default packages directory, why should I change the configuration then.

I think I just want to know if it is an out of the box supported scenario to have a script file in a subdirectory of bin.
I thought this should work out of the box - in this case it is a bug that it doesn't work.

If you say only the bin directory itself is supported without special settings, it's fine too, then you can simply close this issue.

I'm glad I asked anyway because I again learned a few new things.
Thanks!

This comment was originally written by @zoechi

Now I have this problem with a unit test.

It seems the cause is that I moved the subdirectory from

test/db/di to
test/di

which broke the packages symlink

the directory list_equality (above) has no packages symlink at all (I thought they are gone already. It was mentioned frequently that a solution without symlinks is WIP)

I'm still not sure how to cope with such situations.
When are the packages symlinks created and from what tool (pub, Darteditor, ...)?
Should they get updated when they are broken, or does this only work when the directory was moved from Darteditor?
(I do it manually most of the time because Darteditor refuses to do it (a message like 'Directory out of sync' or similar messages is all I get when I try it with DartEditor)
How can this be initiated when it's not done automatically (by tools, I can of course fix symlinks manually)?

The packages symlinks are created by pub and not DartEditor. It creates a packages fodler in web and test and all its subfolders, and in bin. You can run pub get to create the symlinks when you create new folders. DartEditor tries to do this automatically, but am sure there are missed cases.

If you move/create directories, do run pub get.

Closing this issue, reopen if necessary.

Added AsDesigned label.

This comment was originally written by @zoechi

Thanks for the info. I never saw this mentioned before, that pub get creates the symlinks. Can you please verify that this is documented somewhere.
Maybe you don't want to document it because you try to get rid of symlinks anyway. I'm fine with that too. I have all the information I need.

This comment was originally written by @zoechi

I have a dart file in mypackage/bin/async/delay and pub get doesn't create a symlink for packages.
See also http://stackoverflow.com/questions/23975460

This comment was originally written by @zoechi

Seems also not to work for others in subdirectories of bin http://stackoverflow.com/questions/26313199