Issue in QSWATMOD2 when importing MODFLOW grid shapefile

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Lenka Saikumar

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Sep 11, 2025, 4:52:40 AMSep 11

to SWAT-MODFLOW

I am getting the following error when importing the MODFLOW grid into QSWATMOD2:

Traceback (most recent call last):
File "...\QSWATMOD2.py", line 710, in import_mf_grid
modflow_functions.create_top_elev(self)
File "...\modflow_functions.py", line 367, in create_top_elev
top_elevs.append(float(data[ii][jj]))
ValueError: could not convert string to float: 'CONSTANT'

In MODELMUSE , when i export the the grids shapefile, it is in polyline. so converted into polygon by using ArcGIS. I uploaded this shapefile it shows this error . please give suggestions to resolve this error.