Regarding keyerror: 2

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Lenka Saikumar

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Oct 27, 2025, 2:03:08 AMOct 27

to SWAT-MODFLOW

Hi everyone,

i got error while visualize the results in hydrology tab. please give suggestions how to resolve this error.

2025-10-27T10:42:23 WARNING Traceback (most recent call last):
File "C:\PROGRA~1\QGIS32~1.10\apps\Python39\lib\site-packages\pandas\core\indexes\base.py", line 3652, in get_loc
return self._engine.get_loc(casted_key)
File "pandas\_libs\index.pyx", line 147, in pandas._libs.index.IndexEngine.get_loc
File "pandas\_libs\index.pyx", line 176, in pandas._libs.index.IndexEngine.get_loc
File "pandas\_libs\hashtable_class_helper.pxi", line 7080, in pandas._libs.hashtable.PyObjectHashTable.get_item
File "pandas\_libs\hashtable_class_helper.pxi", line 7088, in pandas._libs.hashtable.PyObjectHashTable.get_item
KeyError: 2

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "C:\Users/lab/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\QSWATMOD2\QSWATMOD2.py", line 1077, in plot_stf
post_i_sw.plot_stf(self, ts)
File "C:\Users/lab/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\QSWATMOD2\pyfolder\post_i_sw.py", line 111, in plot_stf
plot_simulated(self, ax, wd, subnum, startDate, ts)
File "C:\Users/lab/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\QSWATMOD2\pyfolder\post_i_sw.py", line 155, in plot_simulated
df = output_rch.loc[subnum]
File "C:\PROGRA~1\QGIS32~1.10\apps\Python39\lib\site-packages\pandas\core\indexing.py", line 1103, in __getitem__
return self._getitem_axis(maybe_callable, axis=axis)
File "C:\PROGRA~1\QGIS32~1.10\apps\Python39\lib\site-packages\pandas\core\indexing.py", line 1343, in _getitem_axis
return self._get_label(key, axis=axis)
File "C:\PROGRA~1\QGIS32~1.10\apps\Python39\lib\site-packages\pandas\core\indexing.py", line 1293, in _get_label
return self.obj.xs(label, axis=axis)
File "C:\PROGRA~1\QGIS32~1.10\apps\Python39\lib\site-packages\pandas\core\generic.py", line 4095, in xs
loc = index.get_loc(key)
File "C:\PROGRA~1\QGIS32~1.10\apps\Python39\lib\site-packages\pandas\core\indexes\base.py", line 3654, in get_loc
raise KeyError(key) from err
KeyError: 2

Thanks in advance!

Seonggyu Park

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Dec 16, 2025, 10:58:24 PM (22 hours ago) Dec 16

to SWAT-MODFLOW

Hi,

Could you please check the simulation ran successfully? If your model ran successfully, please share your QSWATMOD project folder and GIS file.