Cannot create map frame in cartographic composer

[cmbarton]

Because the button to save a display to an image file is also broken, there is no way to export a map from GRASS. So I'm elevating both bug reports to blockers. This is broken in at least v. 7.4.1 and up.

I can draw a dotted line rectangle but it does not create a map frame. So nothing else works in the composer.

Here is the error:

Traceback (most recent call last):
  File "/Applications/GRASS-7.5.app/Contents/Resources/gui/w
xpython/psmap/frame.py", line 1463, in MouseActions

self.OnLeftUp(event)
  File "/Applications/GRASS-7.5.app/Contents/Resources/gui/w
xpython/psmap/frame.py", line 1611, in OnLeftUp

settings=self.instruction, rect=rectPaper)
  File "/Applications/GRASS-7.5.app/Contents/Resources/gui/w
xpython/psmap/dialogs.py", line 772, in __init__

notebook=False)
  File "/Applications/GRASS-7.5.app/Contents/Resources/gui/w
xpython/psmap/dialogs.py", line 846, in __init__

self._layout()
  File "/Applications/GRASS-7.5.app/Contents/Resources/gui/w
xpython/psmap/dialogs.py", line 1122, in _layout

convertRGB(self.mapFrameDict['color']))
  File "/Applications/GRASS-7.5.app/Contents/Resources/gui/w
xpython/psmap/utils.py", line 181, in convertRGB

color = wx.Colour(*color)
TypeError
:
Colour(): arguments did not match any overloaded call:
  overload 1: too many arguments
  overload 2: argument 1 has unexpected type 'float'
  overload 3: argument 1 has unexpected type 'float'
  overload 4: argument 1 has unexpected type 'float'

[neteler]

(properly formatting error report)