Hi, I am trying to move a layer to a group using python. Both the layer and the group are in the current/same map.
I have the following code (the layer to be moved to the group "VMS" is "Fishnet_v1_manual")
import arcpy
aprx = arcpy.mp.ArcGISProject("CURRENT")
mp = aprx.listMaps()[0]
lyr_to_move = mp.listLayers("Fishnet_v1_manual")
group_layer = mp.listLayers("VMS")
mp.addLayerToGroup(group_layer, lyr_to_move, "AUTO_ARRANGE")
But I keep getting this error:
ValueError Traceback (most recent call last)
In [37]:
Line 8: mp.addLayerToGroup(group_layer, lyr_to_move, "AUTO_ARRANGE")
File C:\Program Files\ArcGIS\Pro\Resources\ArcPy\arcpy\utils.py, in fn_:
Line 191: return fn(*args, **kw)
File C:\Program Files\ArcGIS\Pro\Resources\ArcPy\arcpy\_mp.py, in addLayerToGroup:
Line 3559: return convertArcObjectToPythonObject(self._arc_object.addLayerToGroup(*gp_fixargs((target_group_layer, add_layer_or_layerfile, add_position), True)))
ValueError: []
I have also tried moving the layer to after the first layer in the group using moveLayer, but still get a similar error message as the above. The code I used for this is:
import arcpy
aprx = arcpy.mp.ArcGISProject("CURRENT")
mp = aprx.listMaps()[0]
lyr_to_move = mp.listLayers("Fishnet_v1_FeatureLayer_v3")
ref_layer = mp.listLayers(r"Data points in grid")
mp.moveLayer(ref_layer, lyr_to_move, "AFTER")
The error message is:
ValueError Traceback (most recent call last)
In [38]:
Line 9: mp.moveLayer(ref_layer, lyr_to_move, "AFTER")
File C:\Program Files\ArcGIS\Pro\Resources\ArcPy\arcpy\utils.py, in fn_:
Line 191: return fn(*args, **kw)
File C:\Program Files\ArcGIS\Pro\Resources\ArcPy\arcpy\_mp.py, in moveLayer:
Line 3772: return convertArcObjectToPythonObject(self._arc_object.moveLayer(*gp_fixargs((reference_layer, move_layer, insert_position), True)))
ValueError: []
Any ideas on how to fix this error or are there other ways of moving a layer to a group in the current map? Thanks for your help and ideas.
