Issue with Updating Web Layer in ArcGIS Pro Using Python (StageService Error)

ZacharyKasson — Mon, 24 Mar 2025 16:45:03 GMT

I am trying to save a web layer by overwriting the existing feature service using the FeatureSharingDraft class. I am using ArcGIS Pro 3.4 with Python 3.9. I felt like I followed the documentation pretty closely.

Here’s my script:

import arcpy import os portal_url = "" username = "" password = "" arcpy.env.overwriteOutput = True aprx = arcpy.mp.ArcGISProject("CURRENT") arcpy.SignInToPortal(portal_url,username,password) active_portal = arcpy.GetActivePortalURL() print(f"✅ Successfully signed into: {active_portal}") gdb_path = r"c:\path.gdb" feature_layer_name = "test" sddraft_filename = feature_layer_name + ".sddraft" sd_filename = feature_layer_name + ".sd" sddraft_output_filename = os.path.join(gdb_path, sddraft_filename) sd_output_filename = os.path.join(gdb_path, sd_filename) print(sd_output_filename) map_obj = aprx.listMaps()[0] server_type = "HOSTING_SERVER" sddraft = map_obj.getWebLayerSharingDraft(server_type, "FEATURE", feature_layer_name) sddraft.overwriteExistingService = True print(sddraft) # Create Service Definition Draft file sddraft.exportToSDDraft(sddraft_output_filename) # Stage Service print("Start Staging") arcpy.server.StageService(sddraft_output_filename, sd_output_filename) # Share to portal print("Start Uploading") arcpy.server.UploadServiceDefinition(sd_output_filename, server_type) print("Finish Publishing") print(sddraft)

Here is the output:

✅ Successfully signed into: https://portal.maps.arcgis.com/ c:\path.gdb\test.sd <arcpy.sharing.FeatureSharingDraft object at 0x0000020B90D0D950> Start Staging Line 6: arcpy.server.StageService(sddraft_output_filename, sd_output_filename) File C:\Program Files\ArcGIS\Pro\Resources\ArcPy\arcpy\geoprocessing\_base.py, in <lambda>: Line 512: return lambda *args: val(*gp_fixargs(args, True)) ExecuteError: Failed to execute. Parameters are not valid. ERROR 000814: Invalid file type ERROR 000814: Invalid file type Failed to execute (StageService).

I've never used this class before. Why am I using the map object instead of using a layer if I only want to update a single layer?

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Issue with Updating Web Layer in ArcGIS Pro Using Python (StageService Error)