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Merge Failed Error 001156 using pythonaddins.GPToolDialog

Question asked by gaglianobt on Mar 25, 2015

I am have a script using the following:

pythonaddins.GPToolDialog(r'C:\Program Files (x86)\ArcGIS\Desktop10.2\ArcToolbox\Toolboxes\Data Management Tools.tbx', 'Merge')

and it throws the 001156 error.  When I physically run the merge tool out of ArcToolbox on the same layers it runs fine, also I know for a fact the 2 layers to be merged are exactly the same.

 

Any ideas are welcome.

 

Thanks,

Brad Gagliano

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