Fix messages on createslice failure to give more suggestions on how to fix. Suppress Record not found errors during createslice since that's expected
Fix messages on createslice failure to give more suggestions on how to fix. Suppress Record not found errors during createslice since that's expected

GENI-NSF/gram,GENI-NSF/gram,plantigrade/geni-tools,ahelsing/geni-tools,ahelsing/geni-tools,plantigrade/geni-tools,tcmitchell/geni-tools,GENI-NSF/gram,tcmitchell/geni-tools