ValueError: no standard masks exist for given bitdepth with alpha

[mtahiue]

Hello

I've been using docker image to test simplecv

I fall on this issue

ValueError: no standard masks exist for given bitdepth with alpha

this is an example code throwing this issue
different other codes throws the same with draw()

i had the same issue on ipython notebook and on console output

CODE (for ipython notebook)

from SimpleCV import Image, Color, Display
disp = Display(displaytype='notebook')


# load an image from imgur
img = Image('http://i.imgur.com/lfAeZ4n.png')
# use a keypoint detector to find areas of interest
feats = img.findKeypoints()
# draw the list of keypoints
feats.draw(color=Color.RED)
# show the resulting image.
img.show()
# apply the stuff we found to the image.
output = img.applyLayers()
# save the results.
output.save(disp) 

OUTPUT

---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
<ipython-input-2-048a7f1780dc> in <module>()
      8 feats = img.findKeypoints()
      9 # draw the list of keypoints
---> 10 feats.draw(color=Color.RED)
     11 # show the resulting image.
     12 img.show()

/usr/local/lib/python2.7/dist-packages/SimpleCV-1.3-py2.7.egg/SimpleCV/Features/Features.pyc in draw(self, color, width, autocolor, alpha)
     94                 f.draw(color=color,width=width,alpha=alpha)
     95             else:
---> 96                 f.draw(color=color,width=width)
     97 
     98     def show(self, color = Color.GREEN, autocolor = False,width=1):

/usr/local/lib/python2.7/dist-packages/SimpleCV-1.3-py2.7.egg/SimpleCV/Features/Detection.pyc in draw(self, color, width)
   1343 
   1344         """
-> 1345         self.image.dl().circle((self.x,self.y),self._r,color,width)
   1346         pt1 = (int(self.x),int(self.y))
   1347         pt2 = (int(self.x+(self.radius()*sin(radians(self.angle())))),

/usr/local/lib/python2.7/dist-packages/SimpleCV-1.3-py2.7.egg/SimpleCV/ImageClass.pyc in dl(self, index)
   6455 
   6456         """
-> 6457         return self.getDrawingLayer(index)
   6458 
   6459 

/usr/local/lib/python2.7/dist-packages/SimpleCV-1.3-py2.7.egg/SimpleCV/ImageClass.pyc in getDrawingLayer(self, index)
   6440         """
   6441         if not len(self._mLayers):
-> 6442             layer = DrawingLayer(self.size())
   6443             self.addDrawingLayer(layer)
   6444         try:

/usr/local/lib/python2.7/dist-packages/SimpleCV-1.3-py2.7.egg/SimpleCV/DrawingLayer.pyc in __init__(self, (width, height))
     49         self.width = width
     50         self.height = height
---> 51         self._mSurface = pg.Surface((width, height), flags = pg.SRCALPHA)
     52         self._mDefaultAlpha = 255
     53         self._mClearColor = pg.Color(0, 0, 0, 0)

ValueError: no standard masks exist for given bitdepth with alpha