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010161: Unable to open the mask grid <value>.


The input specified to be the mask grid could not be successfully accessed. This may be due to incorrectly specifying the path or not having permission to access the data folders. If the path and permissions are okay, the next possible source of the problem may be the result of missing required component files in the grid's folder. If all the required components are present, it is also possible that the files that contain the binary raster data are internally corrupted.


Check that you have correctly identified the dataset and that you do have read permission. If this has been done and the problem continues, you should then determine whether the grid is a valid one. First try displaying it. If you cannot display it, check to see that all the required component files are present in the grid's folder. If there is no sta.adf file in the grid directory, try creating one with the Calculate Statistics tool. If its data files seem to have been corrupted, you may need to re-create the grid. Hopefully, you have a backup copy that can be used, or you can run the process that created it again.