Error creating contour - failed to copy raster dataset

Discussion created by drstrip on Oct 23, 2011
Latest reply on Jun 1, 2015 by curtvprice
I'm trying to create a contours layer from an elevation raster. It fails with a 9999 error, followed by
(esriDataSourcesRaster:GdalDriver") Failed to copy raster dataset
then error 010240 Could not save raster dataset to ...\temp\g_g7634

There is no name conflict in the temp file where it's trying to copy, and there's plenty of disk space.

My raster is 16bit x 23,500 x 19,500, or about 1GB.
Is that too big?