I have been trying to create a buffer of 12 nautical miles for the Indoensia shapefile which I have, and this is the fourth time it failed. The error that I am getting is 'internal processing failure'. It is taking 7 to 8 hours to run and then it fails! There are no topological errors in the shapefile (I checked on that specifically). I don't know what is causing the failure. I have also tried creating the buffer without dissolving it. It ran successfully but actually the output could not be drawn, which means that it was actually not done successfully! Now, I have split the shapefile and trying to create the buffers separately, then will merge them, and then try dissolve. Don't know if this will work too. Anyone has faced this? Any ideas or solutions?