This bug was fixed in the package qscintilla2 - 2.8.1-2ubuntu1
--------------- qscintilla2 (2.8.1-2ubuntu1) trusty; urgency=medium
* Patch designer-Qt4Qt5/designer.pro to explicitly link with the Qt4 version of the qscintilla2 library to fix runtime inability to find qscintilla2 symbols (LP: #1314114) -- Scott Kitterman <email address hidden> Fri, 11 Jul 2014 22:13:57 -0400
This bug was fixed in the package qscintilla2 - 2.8.1-2ubuntu1
---------------
qscintilla2 (2.8.1-2ubuntu1) trusty; urgency=medium
* Patch designer- Qt4Qt5/ designer. pro to explicitly link with the Qt4 version
of the qscintilla2 library to fix runtime inability to find qscintilla2
symbols (LP: #1314114)
-- Scott Kitterman <email address hidden> Fri, 11 Jul 2014 22:13:57 -0400