Cause
The bitmap mask was not a valid 1BIT GeoRaster object, or it had the wrong dimension sizes.
The bitmap mask was not a valid 1BIT GeoRaster object, or it had the wrong dimension sizes.
Make sure the bitmap mask is a valid 1BIT GeoRaster object with only one band, and the row and column dimension sizes of the bitmap mask are the same as those of the target GeoRaster object.
Try the following links for this error:
http://docs.oracle.com/cd/E16655_01/server.121/e26079/e12700.htm
https://community.oracle.com/message/3229900
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