sorry I have forgotten to cut & paste the error messages:
$ gedit &
[2] 19493
TypeError: can't convert return value to desired type
(gedit:19493): GLib-GObject-CRITICAL **: g_value_get_boolean: assertion
`G_VALUE_HOLDS_BOOLEAN (value)' failed
(gedit:19493): GLib-GObject-CRITICAL **: g_value_reset: assertion
`G_IS_VALUE (value)' failed
(gedit:19493): GLib-GObject-CRITICAL **: g_value_set_boolean: assertion
`G_VALUE_HOLDS_BOOLEAN (value)' failed
(gedit:19493): GLib-GObject-CRITICAL **: g_value_get_boolean: assertion
`G_VALUE_HOLDS_BOOLEAN (value)' failed
(gedit:19493): GLib-GObject-CRITICAL **: g_value_reset: assertion
`G_IS_VALUE (value)' failed
(gedit:19493): GLib-GObject-CRITICAL **: g_value_unset: assertion
`G_IS_VALUE (value)' failed
TypeError: can't convert return value to desired type
(gedit:19493): GLib-GObject-CRITICAL **: g_value_get_boolean: assertion
`G_VALUE_HOLDS_BOOLEAN (value)' failed
(gedit:19493): GLib-GObject-CRITICAL **: g_value_reset: assertion
`G_IS_VALUE (value)' failed
(gedit:19493): GLib-GObject-CRITICAL **: g_value_set_boolean: assertion
`G_VALUE_HOLDS_BOOLEAN (value)' failed
(gedit:19493): GLib-GObject-CRITICAL **: g_value_get_boolean: assertion
`G_VALUE_HOLDS_BOOLEAN (value)' failed
(gedit:19493): GLib-GObject-CRITICAL **: g_value_reset: assertion
`G_IS_VALUE (value)' failed
(gedit:19493): GLib-GObject-CRITICAL **: g_value_unset: assertion
`G_IS_VALUE (value)' failed
(gedit:19493): GLib-GObject-CRITICAL **: g_value_unset: assertion
`G_IS_VALUE (value)' failed
Traceback (most recent call last):
File "/usr/lib/x86_64-linux-gnu/gedit/plugins/charmap/__init__.py", line
61, in do_update_state
self.panel.set_sensitive(len(self.window.get_documents()) >= 1)
File "/usr/lib/python3/dist-packages/gi/_gobject/propertyhelper.py", line
215, in __get__
value = instance.get_property(self.name)
TypeError: unknown type (null)
Exception TypeError: "Couldn't find conversion for foreign struct
'cairo.Context'" in 'garbage collection' ignored
Fatal Python error: unexpected exception during garbage collection
Current thread 0x00007f8eabb7e980:
