Topology error in ArcGis

Question

I am trying to intersect a large feature class (118692 elements) with a grid (58000 elements) but I get an error message.

Traceback (most recent call last):
  File "Path/InterJoin.py", line 24, in <module>
    arcpy.Intersect_analysis([grid, fc], outFeatureClass, "ALL", "", "")
  File "C:\Program Files (x86)\ArcGIS\Desktop10.4\ArcPy\arcpy\analysis.py", line 289, in Intersect
    raise e
arcgisscripting.ExecuteError: ERROR 999999: Error executing function.
The table was not found.
The table was not found. [BDFORET_Buffer_30_1_Inter_Com_Results_Hexagones]
The table was not found.
The table was not found. [BDFORET_Buffer_30_1_Inter_Com_Results_Hexagones]
Invalid Topology [Topoengine error.]
Failed to execute (Intersect).

I used repair geometry but I still got that error, my computer is I think powerful enough to handle the dataset (32G of RAM).

My code may not be optimized i guess.

import arcpy
import os
import ntpath


arcpy.env.workspace = Path to my workspace
outWorkspace = path to my out workspace
grid = path to my grid

arcpy.env.overwriteOutput = True

fcl = arcpy.ListFeatureClasses()

print fcl

for fc in fcl:
    featureClassName = arcpy.ValidateTableName(fc, outWorkspace)
    outFeatureClass = os.path.join(outWorkspace, featureClassName + "_Inter_Grid")
    os.path.join(outWorkspace, outFeatureClass + "_Dissolve")
    arcpy.Intersect_analysis([grid, fc], outFeatureClass, "ALL", "", "")
    arcpy.Dissolve_management(outFeatureClass, outFeatureClass_Dissolve, "CODE", "", "MULTI_PART",
                              "DISSOLVE_LINES")
    outFeatureClassTest = ntpath.basename(outFeatureClass)
    print outFeatureClassTest

So far I know it is not due to the geometry of my feature classes, but I think I might be a memory problem.

Answer 1

Is your grid named 'BDFORET_Buffer_30_1_Inter_Com_Results_Hexagones'? If so, check this bug:

Bug NIM058393 - Intersect geoprocessing tool fails when the input feature class has a name longer than 26 characters.

Try renaming your grid with a shorter name and see if it works.