Traceback (most recent call last):
  File
"/usr/local/grass84/gui/wxpython/datacatalog/tree.py", line
1770, in OnSwitchMapset

self.SwitchMapset(grassdb, location, mapset)
  File
"/usr/local/grass84/gui/wxpython/datacatalog/tree.py", line
1754, in SwitchMapset

switch_mapset_interactively(
  File
"/usr/local/grass84/gui/wxpython/startup/guiutils.py", line
716, in switch_mapset_interactively

giface.currentMapsetChanged.emit(
  File
"/usr/local/grass84/etc/python/grass/pydispatch/signal.py",
line 232, in emit

dispatcher.send(signal=self, *args, **kwargs)
  File "/usr/local/grass84/etc/python/grass/pydispatch/dispa
tcher.py", line 344, in send

response = robustapply.robustApply(















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  File "/usr/local/grass84/etc/python/grass/pydispatch/robus
tapply.py", line 61, in robustApply

return receiver(*arguments, **named)











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  File
"/usr/local/grass84/gui/wxpython/main_window/frame.py", line
1512, in OnMapsetChanged

self.OnWorkspaceClose()
  File
"/usr/local/grass84/gui/wxpython/main_window/frame.py", line
1722, in OnWorkspaceClose

self.workspace_manager.Close()
  File "/usr/local/grass84/gui/wxpython/lmgr/workspace.py",
line 502, in Close

self.lmgr.DisplayCloseAll()
  File
"/usr/local/grass84/gui/wxpython/main_window/frame.py", line
1737, in DisplayCloseAll

for display in self.GetMapDisplay(onlyCurrent=False):



















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  File
"/usr/local/grass84/gui/wxpython/main_window/frame.py", line
1246, in GetMapDisplay

mlist.append(self.notebookLayers.GetPage(idx).maptree.GetMap
Display())

















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AttributeError
:
'Panel' object has no attribute 'maptree'