This bug was fixed in the package qtcreator-plugin-ubuntu - 3.1.1+14.10.20140908-0ubuntu1
--------------- qtcreator-plugin-ubuntu (3.1.1+14.10.20140908-0ubuntu1) utopic; urgency=low
[ Michael Vogt ] * Run pkcon with --allow-untrusted (LP: #1360582). (LP: #1360582) -- Ubuntu daily release <email address hidden> Mon, 08 Sep 2014 09:47:27 +0000
This bug was fixed in the package qtcreator- plugin- ubuntu - 3.1.1+14. 10.20140908- 0ubuntu1
--------------- plugin- ubuntu (3.1.1+ 14.10.20140908- 0ubuntu1) utopic; urgency=low
qtcreator-
[ Michael Vogt ]
* Run pkcon with --allow-untrusted (LP: #1360582). (LP: #1360582)
-- Ubuntu daily release <email address hidden> Mon, 08 Sep 2014 09:47:27 +0000