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I need to calculate multiple ring-buffers, but every time I try, arcgis produces a failure:

Executing (Multiple Ring Buffer): MultipleRingBuffer Y:\GIS\RDY\clip\sn_clip.shp Y:\GIS\RDY\sn_clip_ring.shp 100;250;500;750;1000;1250;1500;1750;2000;2250;2500;2750;3000;3250;3500;3750;4000;4250;4500;4750;5000;5250;5500;5750;6000;6250;6500;6750;7000;7250;7500;7750;8000;8250;8500;8750;9000;9250;9500;9750;10000;10250;10500;10750;1100 Meters distance ALL FULL Start Time: Fri Feb 15 12:03:02 2013 Running script MultipleRingBuffer... ERROR 999999: Error executing function. The table was not found. The table was not found. [union] The table was not found. The table was not found. [union] Invalid Topology [Topoengine error.] Failed to execute (Union).

Completed script MultipleRingBuffer... Failed to execute (Multiple Ring Buffer). Failed at Fri Feb 15 13:58:58 2013 (Elapsed Time: 1 hours 55 minutes 56 seconds)

I don't get it. Can anyone help me with this? Note that I'm not used to python.

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What version of ArcGIS are you using? –  Mapperz Feb 16 '13 at 20:20
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couldn't help but notice that your last increment doesn't follow from the previous ie 10750;1100 is 1100 supposed to be 11000 ? –  Dan Patterson Feb 16 '13 at 21:21
    
@ Mapperz: i'm using ArcMap 10.1 –  Seba Feb 17 '13 at 13:18
    
@Dan Patterson: thanks for that announcement, but that's not the error. –  Seba Feb 17 '13 at 13:19
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Have you tried selecting out a single feature from Y:\GIS\RDY\clip\sn_clip.shp into a new much smaller shapefile and tried MultipleRingBuffer on that to see if your procedure or data seems to be the issue? –  PolyGeo Feb 18 '13 at 9:11
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