<div>Dear All:</div>
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<div>I am a quite novice with GRASS, with basic GIS experience in ArcView and Idrisi. </div>
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<div>Right now I need GRASS to generate a time cost based on<em> r.walk</em>. I download the WinGRASS 6.4 and install it in a Win 7 operation system, followed the tutorial/reference in the Wiki. <br> <br>The installation process is quite smooth. But after enter into the GUI, I can not run any modules. For example, after DEM data (in spearfish60) are properly loaded into a workplace, the layer can be display well, however when I click on the raster--->terrain analysis---->slope and aspect, it should prompt out a dialog window (as shown in most tutorials), but my GRASS shows nothing. </div>
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<div>In the command console, it shows error as:<br> <br><font color="#000099">Traceback (most recent call last):<br> File "C:/GRASS/etc/wxpython/wxgui.py", line 429, in<br>OnMenuCmd<br>cmd = self.GetMenuCmd(event)<br>
File "C:/GRASS/etc/wxpython/wxgui.py", line 414, in<br>GetMenuCmd<br>input =<br>menuform.GUI().GetCommandInputMapParamKey(cmdlist[0])<br> File "C:\GRASS\etc\wxpython\gui_modules\menuform.py", line<br>
2142, in GetCommandInputMapParamKey<br>tree = etree.fromstring(getInterfaceDescription(cmd))<br> File "C:\GRASS\Python25\lib\xml\etree\ElementTree.py",<br>line 963, in XML<br>parser.feed(text)<br> File "C:\GRASS\Python25\lib\xml\etree\ElementTree.py",<br>
line 1245, in feed<br>self._parser.Parse(data, 0)<br>xml.parsers.expat<br>.<br>ExpatError<br>:not well-formed (invalid token): line 48, column 4<br></font> <br></div>
<div>Due to no experiences to Unix and Python, I was quite frustrated with this problem.</div>
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<div>So is there anyone in WinGRASS development team can provide me some indication and help me to fix this problem?</div>
<div>I really appreciate your response.</div>
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<div>Mingyu Yang<br><br></div>