I'm new with ArcGIS. I would like to do a calculate of NDWI. So I'm using Arctoolbox => Spatial analyst tools => Map Algebra => Raster calculator.
But when I'm trying to perform it, I get this error :
Executing: RasterCalculator "Float("LT05_L1TP_196030_19990113_20180215_01_T1_sr_band2.tif" - "LT05_L1TP_196030_19990113_20180215_01_T1_sr_band5.tif") / Float("LT05_L1TP_196030_19990113_20180215_01_T1_sr_band2.tif"+"LT05_L1TP_196030_19990113_20180215_01_T1_sr_band5.tif")" D:\Users\paulc\Documents\SIG_ZHM\NDWI\1999_01_13_NDWI.tifStart Time: Thu Oct 24 15:42:34 2019Float(Raster(r"LT05_L1TP_196030_19990113_20180215_01_T1_sr_band2.tif") - Raster(r"LT05_L1TP_196030_19990113_20180215_01_T1_sr_band5.tif")) / Float(Raster(r"LT05_L1TP_196030_19990113_20180215_01_T1_sr_band2.tif") + Raster(r"LT05_L1TP_196030_19990113_20180215_01_T1_sr_band5.tif"))ERROR 000539: Error running expression: rcexec() Traceback (most recent call last): File "<expression>", line 1, in <module> File "<string>", line 2, in rcexec File "c:\program files (x86)\arcgis\desktop10.3\arcpy\arcpy\__init__.py", line 21, in <module> from arcpy.geoprocessing import gp File "c:\program files (x86)\arcgis\desktop10.3\arcpy\arcpy\geoprocessing\__init__.py", line 14, in <module> from _base import * File "c:\program files (x86)\arcgis\desktop10.3\arcpy\arcpy\geoprocessing\_base.py", line 598, in <module> env = GPEnvironments(gp) File "c:\program files (x86)\arcgis\desktop10.3\arcpy\arcpy\geoprocessing\_base.py", line 595, in GPEnvironments return GPEnvironment(geoprocessor) File "c:\program files (x86)\arcgis\desktop10.3\arcpy\arcpy\geoprocessing\_base.py", line 548, in __init__ import weakref File "D:\Programmes (x86)\Python\Lib\weakref.py", line 14, in <module> from _weakref import (ImportError: cannot import name _remove_dead_weakrefFailed to execute (RasterCalculator).How can I fix this?
I have already tried to change the wayfolder for a shorter way, without space or special character, but it's still like there is a problem with the wayfolder.