Favoriting QtCreator-ran scope results in blank dash

[Giulio Collura]

Unity8 on mako rtm #6 won't load any scope installed in the system. Sometimes it stays on the loading screen with the activity indicator spinning, or it may also end up with the white/grey background, but no scopes are loaded.
I can't use the phone right now, since I can't launch apps from the app scope. The left panel works, though.
This all started after I played a bit with QtCreator because I'm developing a scope for the contest.
I don't know exactly which files to attach, meanwhile there's ~/.cache/upstart/scope-register.log.
Tell me if you need more information.

Thanks in advance for the help,
Giulio

Potential steps to reproduce:
- run a custom scope from QtCreator
- add that scope to favorites
- close QtCreator

This seems to leave the phone in a state where it can't load the scopes any more. The below helps to clear this again:

$ gsettings reset com.canonical.Unity.Dash favorite-scopes

[Michał Sawicz (saviq)]

Can you please paste the output from the command below, ran on the phone:

$ system-image-cli -i

Also, if you could please attach ~/.cache/upstart/unity8-dash.log

[Giulio Collura (gcollura)]

$ system-image-cli -i
current build number: 6
device name: mako
channel: ubuntu-touch/ubuntu-rtm/14.09
last update: 2014-11-04 00:06:16
version version: 6
version ubuntu: 20141031.1
version device: 20141017.2
version custom: mako-1.1

Thanks,
Giulio

[Giulio Collura (gcollura)]

Running `gsettings reset com.canonical.Unity.Dash favorite-scopes` in phone terminal, fixed my problem.

Thanks Saviq!

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Mateo Salta (mateo-salta)]

I just had this happen on my MX4 ubuntu edition - extreemly scary and didn't know what caused it till I read this bug. The workaround worked - but I couldn't get to the terminal on the phone (a: not installed by default, b: not a shortcut on the launcher) and without the app scope the device is essentially soft bricked - i was able to attach to my laptop, and do `adb shell` fortunately then run the command, a more serious pitfall for beginning developers.

Can we have a "if scope exists" check on loading favorite scopes at boot? or in the reset settings a reset scope favorites (either would be enough to ease hit on this one, as one of the first things I did was do the reset launcher button)

[Benjamin Zeller (zeller-benjamin)]

I can not reproduce this with the current rc-proposed image. Is this still a problem?

[Michi Henning (michihenning)]

I believe the cause is here: https://bugs.launchpad.net/ubuntu/+source/unity8/+bug/1511063

If you have the mixcloud scope in your favourites, unfavourite it. That should fix the problem for the time being.