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<font face="Arial">Hi,<br>
<br>
I was trying to re create a model with qgis3 (models made with
qgis2 not being supported) when I started getting python error
messages. I don't understand them. I finally closed my project and
reloaded it again. <br>
<br>
Now when I try to edit the model, it crashes automatically and I
cannot edit it at all.<br>
<span style=" font-weight:600; color:#ff0000;">An error has
occurred while executing Python code:</span> <br>
</font>
<p style=" margin-top:14px; margin-bottom:12px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;"><font
face="Arial"><span style=" font-size:large; font-weight:600;">KeyError:
'' </span></font></p>
<font face="Arial">
</font>
<pre style=" margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;"><font face="Arial">Traceback (most recent call last):
File "C:/OSGEO4~1/apps/qgis-ltr/./python/plugins\processing\modeler\ModelerDialog.py", line 716, in openModel
self.loadModel(filename)
File "C:/OSGEO4~1/apps/qgis-ltr/./python/plugins\processing\modeler\ModelerDialog.py", line 725, in loadModel
self.repaintModel()
File "C:/OSGEO4~1/apps/qgis-ltr/./python/plugins\processing\modeler\ModelerDialog.py", line 741, in repaintModel
self.scene.paintModel(self.model, controls)
File "C:/OSGEO4~1/apps/qgis-ltr/./python/plugins\processing\modeler\ModelerScene.py", line 142, in paintModel
sourceItems = self.getItemsFromParamValue(source, alg.childId(), context)
File "C:/OSGEO4~1/apps/qgis-ltr/./python/plugins\processing\modeler\ModelerScene.py", line 74, in getItemsFromParamValue
items.append((self.paramItems[value.parameterName()], 0))
KeyError: ''</font></pre>
<font face="Arial"><br>
Although I could start from scratch again, I find it a nuisance
not being able to edit the model. Any suggestions are welcome ;o)<br>
<br>
QGIS 3.4.13 and 3.10.0 (same behaviour)<br>
Windows 8 pro 64 bits<br>
<br>
Kind regards<br>
<b>Laurence Bechet</b><b><span style="font-size: 10pt; color:
rgb(0, 102, 0);"><br>
</span></b><font size="-1"><b><span
style="font-size:12.0pt;color:#006600">ARK IN THE PARK
Volunteer Co-Ordinator</span></b><br>
</font></font><font face="Arial"><font size="-1">
<b><span style="font-size:12.0pt;color:#006600">Cascades Ranger
Station<br>
</span></b></font><b><span
style="font-size:12.0pt;color:#006600"><font size="-1">Falls
Road, Waitakere<br>
Auckland</font><br>
</span></b></font><font face="Arial"><b><span
style="font-size:12.0pt;color:#006600"></span></b></font>
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