Getting error message while running GRASS command?

Question

I'm using GRASS 6.4.3(installed with OSGeo4W) under Windows 8.1 x64.

When I type commands in the command console below, I often face these problems：

type command which has "space", like：g.list rast, as I type "space" (the command was not finished), the output window always shows error message like this：

Traceback (most recent call last): File "C:\PROGRA~2\QUANTU~1\apps\grass\grass-6.4.3RC2\etc\w xpython\gui_core\prompt.py", line 1133, in OnKeyPressed

self.cmdDesc = gtask.parse_interface(GetRealCmd(cmd)) File "C:\PROGRA~2\QUANTU~1\apps\grass\grass-6.4.3RC2\etc\p ython\grass\script\task.py", line 470, in parse_interface

tree = etree.fromstring(get_interface_description(name)) File "C:\PROGRA~2\QUANTU~1\apps\Python27\lib\xml\etree\Ele mentTree.py", line 1282, in XML

parser.feed(text) File "C:\PROGRA~2\QUANTU~1\apps\Python27\lib\xml\etree\Ele mentTree.py", line 1624, in feed

self._raiseerror(v) File "C:\PROGRA~2\QUANTU~1\apps\Python27\lib\xml\etree\Ele mentTree.py", line 1488, in _raiseerror

raise err xml.etree.ElementTree . ParseError : unknown encoding: line 1, column 30
As I finish the command, I press "enter", and the same error message shows. In many times, I press "enter" to run the module more than one time or I clear the output window before I run the module, the same error message still came out.

Although I could get results what I want, but it's very annoying having these problems, and I don't know why the same error message show up？ And how to fix it？

Are these problems in relation to WIN8.1 or something else？

My GRASS GUI is very unstable as it often shows problems I post above, here's the detailed output log as I use r.category command,

(Tue Mar 25 10:59:11 2014)                                                      
r.category b1                                                                   
1   
(Tue Mar 25 10:59:12 2014) Command finished (0 sec)                             
Traceback (most recent call last):
  File "C:\OSGeo4W\apps\grass\grass-6.4.3\etc\wxpython\gui_c
ore\prompt.py", line 1122, in OnKeyPressed

self._runCmd(self.GetCurLine()[0].strip())
  File "C:\OSGeo4W\apps\grass\grass-6.4.3\etc\wxpython\gui_c
ore\prompt.py", line 623, in _runCmd

self.parent.RunCmd(cmd)
  File "C:\OSGeo4W\apps\grass\grass-6.4.3\etc\wxpython\gui_c
ore\goutput.py", line 554, in RunCmd

task = GUI(show = None).ParseCommand(command)
  File "C:\OSGeo4W\apps\grass\grass-6.4.3\etc\wxpython\gui_c
ore\forms.py", line 1871, in ParseCommand

blackList = _blackList)
  File "C:\OSGeo4W\apps\grass\grass-6.4.3\etc\python\grass\s
cript\task.py", line 470, in parse_interface

tree = etree.fromstring(get_interface_description(name))
  File
"C:\OSGeo4W\apps\Python27\lib\xml\etree\ElementTree.py",
line 1300, in XML

parser.feed(text)
  File
"C:\OSGeo4W\apps\Python27\lib\xml\etree\ElementTree.py",
line 1642, in feed

self._raiseerror(v)
  File
"C:\OSGeo4W\apps\Python27\lib\xml\etree\ElementTree.py",
line 1506, in _raiseerror

raise err
xml.etree.ElementTree
.
ParseError
:
unknown encoding: line 1, column 30
Traceback (most recent call last):
  File "C:\OSGeo4W\apps\grass\grass-6.4.3\etc\wxpython\gui_c
ore\prompt.py", line 1122, in OnKeyPressed

self._runCmd(self.GetCurLine()[0].strip())
  File "C:\OSGeo4W\apps\grass\grass-6.4.3\etc\wxpython\gui_c
ore\prompt.py", line 623, in _runCmd

self.parent.RunCmd(cmd)
  File "C:\OSGeo4W\apps\grass\grass-6.4.3\etc\wxpython\gui_c
ore\goutput.py", line 554, in RunCmd

task = GUI(show = None).ParseCommand(command)
  File "C:\OSGeo4W\apps\grass\grass-6.4.3\etc\wxpython\gui_c
ore\forms.py", line 1871, in ParseCommand

blackList = _blackList)
  File "C:\OSGeo4W\apps\grass\grass-6.4.3\etc\python\grass\s
cript\task.py", line 470, in parse_interface

tree = etree.fromstring(get_interface_description(name))
  File
"C:\OSGeo4W\apps\Python27\lib\xml\etree\ElementTree.py",
line 1300, in XML

parser.feed(text)
  File
"C:\OSGeo4W\apps\Python27\lib\xml\etree\ElementTree.py",
line 1642, in feed

self._raiseerror(v)
  File
"C:\OSGeo4W\apps\Python27\lib\xml\etree\ElementTree.py",
line 1506, in _raiseerror

raise err
xml.etree.ElementTree
.
ParseError
:
unknown encoding: line 1, column 30
Traceback (most recent call last):
  File "C:\OSGeo4W\apps\grass\grass-6.4.3\etc\wxpython\gui_c
ore\prompt.py", line 1122, in OnKeyPressed

self._runCmd(self.GetCurLine()[0].strip())
  File "C:\OSGeo4W\apps\grass\grass-6.4.3\etc\wxpython\gui_c
ore\prompt.py", line 623, in _runCmd

self.parent.RunCmd(cmd)
  File "C:\OSGeo4W\apps\grass\grass-6.4.3\etc\wxpython\gui_c
ore\goutput.py", line 554, in RunCmd

task = GUI(show = None).ParseCommand(command)
  File "C:\OSGeo4W\apps\grass\grass-6.4.3\etc\wxpython\gui_c
ore\forms.py", line 1871, in ParseCommand

blackList = _blackList)
  File "C:\OSGeo4W\apps\grass\grass-6.4.3\etc\python\grass\s
cript\task.py", line 470, in parse_interface

tree = etree.fromstring(get_interface_description(name))
  File
"C:\OSGeo4W\apps\Python27\lib\xml\etree\ElementTree.py",
line 1300, in XML

parser.feed(text)
  File
"C:\OSGeo4W\apps\Python27\lib\xml\etree\ElementTree.py",
line 1642, in feed

self._raiseerror(v)
  File
"C:\OSGeo4W\apps\Python27\lib\xml\etree\ElementTree.py",
line 1506, in _raiseerror

raise err
xml.etree.ElementTree
.
ParseError
:
unknown encoding: line 1, column 30
Traceback (most recent call last):
  File "C:\OSGeo4W\apps\grass\grass-6.4.3\etc\wxpython\gui_c
ore\prompt.py", line 1122, in OnKeyPressed

self._runCmd(self.GetCurLine()[0].strip())
  File "C:\OSGeo4W\apps\grass\grass-6.4.3\etc\wxpython\gui_c
ore\prompt.py", line 623, in _runCmd

self.parent.RunCmd(cmd)
  File "C:\OSGeo4W\apps\grass\grass-6.4.3\etc\wxpython\gui_c
ore\goutput.py", line 554, in RunCmd

task = GUI(show = None).ParseCommand(command)
  File "C:\OSGeo4W\apps\grass\grass-6.4.3\etc\wxpython\gui_c
ore\forms.py", line 1871, in ParseCommand

blackList = _blackList)
  File "C:\OSGeo4W\apps\grass\grass-6.4.3\etc\python\grass\s
cript\task.py", line 470, in parse_interface

tree = etree.fromstring(get_interface_description(name))
  File
"C:\OSGeo4W\apps\Python27\lib\xml\etree\ElementTree.py",
line 1300, in XML

parser.feed(text)
  File
"C:\OSGeo4W\apps\Python27\lib\xml\etree\ElementTree.py",
line 1642, in feed

self._raiseerror(v)
  File
"C:\OSGeo4W\apps\Python27\lib\xml\etree\ElementTree.py",
line 1506, in _raiseerror

raise err
xml.etree.ElementTree
.
ParseError
:
unknown encoding: line 1, column 30
Traceback (most recent call last):
  File "C:\OSGeo4W\apps\grass\grass-6.4.3\etc\wxpython\gui_c
ore\prompt.py", line 1122, in OnKeyPressed

self._runCmd(self.GetCurLine()[0].strip())
  File "C:\OSGeo4W\apps\grass\grass-6.4.3\etc\wxpython\gui_c
ore\prompt.py", line 623, in _runCmd

self.parent.RunCmd(cmd)
  File "C:\OSGeo4W\apps\grass\grass-6.4.3\etc\wxpython\gui_c
ore\goutput.py", line 554, in RunCmd

task = GUI(show = None).ParseCommand(command)
  File "C:\OSGeo4W\apps\grass\grass-6.4.3\etc\wxpython\gui_c
ore\forms.py", line 1871, in ParseCommand

blackList = _blackList)
  File "C:\OSGeo4W\apps\grass\grass-6.4.3\etc\python\grass\s
cript\task.py", line 470, in parse_interface

tree = etree.fromstring(get_interface_description(name))
  File
"C:\OSGeo4W\apps\Python27\lib\xml\etree\ElementTree.py",
line 1300, in XML

parser.feed(text)
  File
"C:\OSGeo4W\apps\Python27\lib\xml\etree\ElementTree.py",
line 1642, in feed

self._raiseerror(v)
  File
"C:\OSGeo4W\apps\Python27\lib\xml\etree\ElementTree.py",
line 1506, in _raiseerror

raise err
xml.etree.ElementTree
.
ParseError
:
unknown encoding: line 1, column 30
Traceback (most recent call last):
  File "C:\OSGeo4W\apps\grass\grass-6.4.3\etc\wxpython\gui_c
ore\prompt.py", line 1122, in OnKeyPressed

self._runCmd(self.GetCurLine()[0].strip())
  File "C:\OSGeo4W\apps\grass\grass-6.4.3\etc\wxpython\gui_c
ore\prompt.py", line 623, in _runCmd

self.parent.RunCmd(cmd)
  File "C:\OSGeo4W\apps\grass\grass-6.4.3\etc\wxpython\gui_c
ore\goutput.py", line 554, in RunCmd

task = GUI(show = None).ParseCommand(command)
  File "C:\OSGeo4W\apps\grass\grass-6.4.3\etc\wxpython\gui_c
ore\forms.py", line 1871, in ParseCommand

blackList = _blackList)
  File "C:\OSGeo4W\apps\grass\grass-6.4.3\etc\python\grass\s
cript\task.py", line 470, in parse_interface

tree = etree.fromstring(get_interface_description(name))
  File
"C:\OSGeo4W\apps\Python27\lib\xml\etree\ElementTree.py",
line 1300, in XML

parser.feed(text)
  File
"C:\OSGeo4W\apps\Python27\lib\xml\etree\ElementTree.py",
line 1642, in feed

self._raiseerror(v)
  File
"C:\OSGeo4W\apps\Python27\lib\xml\etree\ElementTree.py",
line 1506, in _raiseerror

raise err
xml.etree.ElementTree
.
ParseError
:
unknown encoding: line 1, column 30
(Tue Mar 25 10:59:16 2014)                                                      
r.category b4                                                                   
1   
(Tue Mar 25 10:59:17 2014) Command finished (0 sec)

The log shows that after r.category b1 successfully runs, I try to run r.category b4 but get the same error once I press enter. After error messages show up many times, I finally get the result.

I don't know the meaning of the error, and how to fix it or improve its stability via these errors. Does this in relation with my platform？, and are there someone successfully and smoothly using GRASS under Windows 8.1 x64？

markusN · Accepted Answer · 2014-01-30 06:48:25Z

3

As I answered to another of your questions, please update to the official release first which is GRASS GIS 6.4.3. It is difficult to give you any suggestion on a release candidate.

See the official release news here: http://trac.osgeo.org/grass/wiki/Release/6.4.3-News

If the problem persists, please report.

answered Jan 30, 2014 at 6:48

markusN

13k32 silver badges49 bronze badges

2

Which error do you get?
– markusN
Commented Jan 30, 2014 at 17:24
1

Do you have ArcGIS installed, too? There seems to sometimes occur conflicts with the different Python version coming with ArcGIS and GRASS GIS...
– markusN
Commented Feb 24, 2014 at 23:25
1

thank you for your advice, so I need to try to uninstall ArcGIS...
– Heinz
Commented Feb 25, 2014 at 1:08
1

Yes, please try that. I really hope that we can sort out these conflicting Python problems. See also the related discussion in lists.osgeo.org/pipermail/grass-dev/2014-February/…
– markusN
Commented Feb 26, 2014 at 8:34
1

Please explain what "broken data" means for you... r.watershed generates data in the GRASS format and does not export.
– markusN
Commented Feb 27, 2014 at 21:34

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