Desktop file does not exist when deploying qmake project onto device

[XiaoGuo, Liu]

I am using Ubuntu Desktop vivid (15.04)

I am now creating qmake projects (QML app with C++ plugin/QtQuick with QML UI templates). It runs well on the "Ubuntu SDK Desktop kit". However, when I tried to deploy it onto my Ubuntu phone, it complains:

"Desktop file does not exist".

Attached please find the captured screen.

liuxg@liuxg:~$ dpkg-query -W ubuntu-sdk qtcreator qtcreator-plugin-ubuntu qtcreator-plugin-ubuntu-common
qtcreator
qtcreator-plugin-ubuntu 3.1.1+15.10.20151018-0ubuntu1~0vivid1
qtcreator-plugin-ubuntu-common
ubuntu-sdk 1.222~0ubuntu1~0vivid2

liuxg@liuxg:~$ apt-cache policy ubuntu-sdk
ubuntu-sdk:
  Installed: 1.222~0ubuntu1~0vivid2
  Candidate: 1.222~0ubuntu1~0vivid2
  Version table:
 *** 1.222~0ubuntu1~0vivid2 0
        500 http://ppa.launchpad.net/ubuntu-sdk-team/ppa/ubuntu/ vivid/main amd64 Packages
        100 /var/lib/dpkg/status
     1.221 0
        500 http://mirrors.sohu.com/ubuntu/ vivid/universe amd64 Packages

This problem happens when migrating from the old SDK to the new SDK. A developer has to remove the qtcreator-plugin, and at the meantime, the developer needs to remove the existing chroots and reinstall everything again.

- sudo apt-get remove qtcreator qtcreator-plugin*
- sudo dpkg --purge qtcreator-plugin-ubuntu
- Remove the chroots and reinstall the chroots

Best regards,
XiaoGuo