While i'am trying to execute this code IN IDLE, i got error :  import arcpy import math import arcview from arcpy import env   arcpy.env.workspace = "D:/Users/saadiya/Documents/ArcGIS/Default.gdb" arcpy.env.overwriteOutput = True  #Create a table of neighbors  arcpy.PolygonNeighbors_analysis("Parcelles_class_copy","Voisins_table") #Parcelles_class_copy est le résultat de la conversion de dwg en polygon   #Select each table neighbors for i in range(1,8) :     expression = '"src_OBJECTID"=' + str(i)     output_table = "output_table" + str(i)     arcpy.TableSelect_analysis("Voisins_table", output_table, expression)     #print expression  #***************** supprimer la table Voisins_table ********************************************************************** arcpy.Delete_management("Voisins_table")  #Joint table of neighbors to feautre class arcpy.AddJoin_management("Parcelles_class_copy","OBJECTID", output_table,"nbr_OBJECTID","KEEP_ALL")  del expression       #Select a target parcel  target_parcel = "target_parcel" + str(i) whereclause1 = '"Parcelles_class.OBJECTID"=' + str(i) arcpy.Select_analysis("Parcelles_class_copy",target_parcel,whereclause1) arcpy.RemoveJoin_management("Parcelles_class_copy",output_table)   i got this error :   ERROR 000840: The value is not a Raster Catalogue Layer ERROR 000840: The value is not a Raster Layer. ERROR 000840: The value is not a Mosaic Layer Failed to execute (Addjoin)
I am doing some arcpy -functions and afterwards I'm trying to add the calculated results from one table to another table. I'm using the arcpy.AddJoin_management() function.   As input table I'm using a table which is stored in a personal geodatabase. The personal geodatabase is not the workspace environment! As "JoinTable" a Table of a file geodatabase is used. This file geodatabase is the workspace geodatabase environment.  The initialized function looks like this:  (%self.getWorkspaceEnvironment => "W:/a18fb/data/mypersonalgeodatabase.mdb" and tFactsheetHochwasser => table in the personal geodatabase)  arcpy.AddJoin_management("%s/tFactsheetHochwasser"%self.getWorkspaceEnvironment(),"KPG", "GebaeudeKtn_BWVred1Stat","KPG","KEEP_ALL")  If the code is executed the following error-message appears:  Failed to execute.Parameters are not valid. The value cannot be a table     ERROR 000840: The value is not a Raster Layer.      ERROR 000840: The value is not a Raster Catalog Layer.      ERROR 000840: The value is not a Mosaic Layer.      Failed to execute (AddJoin)`.
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