The following picture shows the location of the files I need for the Closest Facility Analysis. enter image description here

What's wrong with my code?

import arcpy

arcpy.env.workspace = r"C:\Users\TL\Desktop\test\2.gdb"
inNetworkDataset = "C:\Users\TL\Desktop\test\2.gdb\network\network_ND"
inIncidents = r'G_Fac'
inFacilities = r'HighwayJunctions'
outGeodatabase = r"C:\Users\TL\Desktop\test\2.gdb"
outRoutes = "Routes"
outDirections = "Directions"
outClosestFacilities = "ClosestFacilities"
measurement_units = "Feet"

# Run FindClosestFacilities. Choose to find only the closest facility.
arcpy.na.FindClosestFacilities(inIncidents, inFacilities, measurement_units,
                                    inNetworkDataset, outGeodatabase, outRoutes,
                                    outDirections, outClosestFacilities,

print "Script completed successfully"

The error I got:

Traceback (most recent call last):
  File "<editor selection>", line 14, in <module>
  File "C:\Program Files (x86)\ArcGIS\Desktop10.3\ArcPy\arcpy\na.py", line 2630, in FindClosestFacilities
    raise e
ExecuteError: Failed to execute. Parameters are not valid.
ERROR 000732: Network Dataset: Dataset C:\Users\TL\Desktop  est.gdb
etwork_ND does not exist or is not supported
Failed to execute (FindClosestFacilities).

1 Answer 1


Does it really say: "C:\Users\TL\Desktop est.gdb"?

You might need to put an r in front on the " in inNetworkDatset.

inNetworkDataset = r"C:\Users\TL\Desktop\test\2.gdb\network\network_ND"

Slashes are escape characters.

Another option would be to reverse the \ to /:

  • You are right. Also, I add a field for time measurement and the code works.
    – Tianxin Li
    Sep 2, 2016 at 20:32

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