title: Global OS X framework clashes with local one and prevents Canopy from opening
body: <p>In my system (Mac OS X 10.6.8) it is impossible to open Enthought Canopy, since it crashes immediately with many of those errors in the Console:</p>
  <blockquote>
  <p>11/05/14 20.28.00 [0x0-0x1271270].com.Canopy[53010]   objc[53015]: Class QCocoaPageLayoutDelegate is implemented in both /Users/name/Applications/Canopy.app/appdata/canopy-1.4.0.1938.macosx-x86_64/Canopy.app/Contents/lib/python2.7/site-packages/PySide/../../../../lib/QtGui.framework/Versions/4/QtGui and /Library/Frameworks/QtGui.framework/Versions/4/QtGui. One of the two will be used. Which one is undefined.</p>
  </blockquote>
  <p>followed by</p>
  <blockquote>
  <p>11/05/14 20.28.00 [0x0-0x1271270].com.Canopy[53010]   QObject::moveToThread: Current thread (0x102837760) is not the object's thread (0x120281040).</p>
  <p>11/05/14 20.28.00 [0x0-0x1271270].com.Canopy[53010]   Cannot move to target thread (0x102837760)</p>
  <p>11/05/14 20.28.00 [0x0-0x1271270].com.Canopy[53010]   On Mac OS X, you might be loading two sets of Qt binaries into the same process. Check that all plugins are compiled against the right Qt binaries. Export DYLD_PRINT_LIBRARIES=1 and check that only one set of binaries are being loaded.</p>
  </blockquote>
  <p>In fact I have a version of Qt installed in the default location (so I have many frameworks of the type <code>/Library/Frameworks/QtGui.framework</code> ) and this appears to conflict with the version that Canopy has inside. Is there a way to resolve this conflict without removing the  preexisting Qt installation?</p>
  <p>Ironically  I decided to install Canopy to circumvent the problems that I had when installing <strong>chaco</strong>, the only program that I needed, because it required Qt and pyside. This has triggered a long yak shaving marathon of installing one program after the other (Qt-&gt;pyQt-&gt;ets-&gt;vtk-&gt;mayavi-&gt;chaco-&gt;pyside-&gt;...) that I hoped to escape by installing Canopy. Therefore, I am pretty desperate at that point.</p>