====================================================================
 brickv executed
====================================================================
Traceback (most recent call last):
  File "/nix/store/ii77z3ggik14jy8c5rfyiq57mhwppn0m-brickv-1.1.14/bin/.brickv-wrapped", line 41, in <module>
    from mainwindow import MainWindow
  File
"/nix/store/ii77z3ggik14jy8c5rfyiq57mhwppn0m-brickv-1.1.14/bin/../lib/python2.7/site-packages/brickv/mainwindow.py",
line 31, in <module>
    from flashing import FlashingWindow
  File
"/nix/store/ii77z3ggik14jy8c5rfyiq57mhwppn0m-brickv-1.1.14/bin/../lib/python2.7/site-packages/brickv/flashing.py", line
28, in <module>
    from plugin_system.plugins.imu.calibrate_import_export import parse_imu_calibration
  File
"/nix/store/ii77z3ggik14jy8c5rfyiq57mhwppn0m-brickv-1.1.14/bin/../lib/python2.7/site-packages/brickv/plugin_system/plugins/imu/__init__.py",
line 24, in <module>
    from imu import IMU
  File
"/nix/store/ii77z3ggik14jy8c5rfyiq57mhwppn0m-brickv-1.1.14/bin/../lib/python2.7/site-packages/brickv/plugin_system/plugins/imu/imu.py",
line 32, in <module>
    import Qwt as Qwt
ImportError:
/nix/store/9r6ifdlnwm7i76p4dnrq0aim0kc8s8f1-python-pyqwt-5.2.0/lib/python2.7/site-packages/PyQt4/Qwt5/Qwt.so: undefined
symbol: _ZTI8QwtWheel