```Traceback (most recent call last):
  File "/home/chris/dev/qtpyvcp/qtpyvcp/widgets/qtdesigner_plugin.py", line 40, in <module>
    from qtpyvcp.widgets.hal_widgets.designer_plugins import *
  File "/home/chris/dev/qtpyvcp/qtpyvcp/widgets/hal_widgets/designer_plugins.py", line 50, in <module>
    from qtpyvcp.widgets.hal_widgets.hal_plot import HalPlot
  File "/home/chris/dev/qtpyvcp/qtpyvcp/widgets/hal_widgets/hal_plot.py", line 27, in <module>
    import pyqtgraph as pg
ImportError: No module named pyqtgraph