When attempting to mosaic 1-bit raster data to a geodatabase, an "invalid raster data" error occurs

Last Published: April 25, 2020

Error Message

This problem is addressed in ArcGIS 8.1 Service Pack 1. See the Related Information section to download this pack.

A 1-bit raster has been loaded onto the geodatabase. An attempt is made to mosaic another 1-bit raster to the same geodatabase. The operation may fail with the following message: "invalid raster data".


This error only occurs when the existing ArcSDE raster is not located at the top of the whole mosaicked extent. The negative extents are being rounded improperly, resulting in an offset that is one pixel short. This causes the data length verification to fail, triggering the error message.

Solution or Workaround

This issue has been resolved in Service Pack 1 of ArcGIS 8.1.

    Article ID:000004089

    • ArcMap 8 x

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