no such package 'qtubuntu-desktop' when building Ubuntu-clock snap example

[XiaoGuo Liu]

Hi

I remember I successfully compiled the Ubuntu-clock example long time ago.
Today, I tried to build it again using the latest snapcraft to build.
However, I got an error like the following? What could be the problem for
it? I am building it on 16.04, and my snapcraft versin is 2.12. I also got
the same problem when build the sample app webcam-webui, and I reported at
https://bugs.launchpad.net/developer-ubuntu-com/+bug/1600122.

liuxg at liuxg:~/snappy/desktop/snappy-playpen/ubuntu-clock-app$ snapcraft
"confinement" property not specified: defaulting to "strict"
Preparing to pull clock
Get:1 http://ppa.launchpad.net/ubuntu-sdk-team/ppa/ubuntu xenial InRelease
[17.5 kB]
Get:2 http://archive.linux.duke.edu/ubuntu xenial InRelease [247 kB]

Get:3 http://ppa.launchpad.net/ubuntu-sdk-team/staging/ubuntu xenial
InRelease [17.5 kB]
...
Get:18 http://archive.linux.duke.edu/ubuntu xenial/restricted amd64
Packages [8,344 B]
Get:19 http://archive.linux.duke.edu/ubuntu xenial/restricted
Translation-en [2,908 B]
Get:20 http://archive.linux.duke.edu/ubuntu xenial/restricted amd64 DEP-11
Metadata [186 B]
Get:21 http://archive.linux.duke.edu/ubuntu xenial/multiverse amd64
Packages [144 kB]
Get:22 http://archive.linux.duke.edu/ubuntu xenial/multiverse
Translation-en [106 kB]
Get:23 http://archive.linux.duke.edu/ubuntu xenial/multiverse amd64 DEP-11
Metadata [63.8 kB]
Get:24 http://archive.linux.duke.edu/ubuntu xenial/multiverse DEP-11 64x64
Icons [230 kB]
Get:25 http://archive.linux.duke.edu/ubuntu xenial-updates/main Sources
[90.6 kB]
Get:26 http://archive.linux.duke.edu/ubuntu xenial-updates/multiverse
Sources [728 B]
Get:27 http://archive.linux.duke.edu/ubuntu xenial-updates/main amd64
Packages [248 kB]
Get:28 http://archive.linux.duke.edu/ubuntu xenial-updates/main
Translation-en [98.1 kB]
Get:29 http://archive.linux.duke.edu/ubuntu xenial-updates/main amd64
DEP-11 Metadata [186 kB]
Get:30 http://archive.linux.duke.edu/ubuntu xenial-updates/main DEP-11
64x64 Icons [150 kB]
Get:31 http://archive.linux.duke.edu/ubuntu xenial-updates/restricted amd64
DEP-11 Metadata [157 B]
Get:32 http://archive.linux.duke.edu/ubuntu xenial-updates/multiverse amd64
Packages [1,176 B]
Get:33 http://archive.linux.duke.edu/ubuntu xenial-updates/multiverse
Translation-en [628 B]
Get:34 http://archive.linux.duke.edu/ubuntu xenial-updates/multiverse amd64
DEP-11 Metadata [158 B]
Get:35 http://archive.linux.duke.edu/ubuntu xenial-backports/main Sources
[752 B]
Get:36 http://archive.linux.duke.edu/ubuntu xenial-backports/main amd64
Packages [676 B]
Get:37 http://archive.linux.duke.edu/ubuntu xenial-backports/main
Translation-en [524 B]
Get:38 http://archive.linux.duke.edu/ubuntu xenial-backports/main amd64
DEP-11 Metadata [197 B]
Get:39 http://archive.linux.duke.edu/ubuntu xenial-backports/restricted
amd64 DEP-11 Metadata [194 B]
Get:40 http://archive.linux.duke.edu/ubuntu xenial-backports/multiverse
amd64 DEP-11 Metadata [194 B]
Get:41 http://archive.linux.duke.edu/ubuntu xenial-security/main Sources
[30.5 kB]
Get:42 http://archive.linux.duke.edu/ubuntu xenial-security/multiverse
Sources [728 B]
Get:43 http://archive.linux.duke.edu/ubuntu xenial-security/main amd64
Packages [117 kB]
Get:44 http://archive.linux.duke.edu/ubuntu xenial-security/main
Translation-en [44.8 kB]
Get:45 http://archive.linux.duke.edu/ubuntu xenial-security/main amd64
DEP-11 Metadata [44.0 kB]
Get:46 http://archive.linux.duke.edu/ubuntu xenial-security/main DEP-11
64x64 Icons [50.8 kB]
Get:47 http://archive.linux.duke.edu/ubuntu xenial-security/restricted
amd64 DEP-11 Metadata [158 B]
Get:48 http://archive.linux.duke.edu/ubuntu xenial-security/multiverse
amd64 Packages [1,176 B]
Get:49 http://archive.linux.duke.edu/ubuntu xenial-security/multiverse
Translation-en [628 B]
Get:50 http://archive.linux.duke.edu/ubuntu xenial-security/multiverse
amd64 DEP-11 Metadata [200 B]
Fetched 6,174 kB in 6s (452 kB/s)

Error downloading stage packages for part 'clock': no such package
'qtubuntu-desktop'

Thanks & best regards,
XiaoGuo

-- 
XiaoGuo, Liu (刘晓国）
Mobile: +86-13911181302
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.ubuntu.com/archives/snapcraft/attachments/20160708/bfb915d1/attachment.html>