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010066: RegionGroup: Unable to allocate required memory of <value> bytes.


The amount of memory required to execute the Region Group tool is not available. RegionGroup can consume a lot of system resources, particularly if your input raster has a lot of small-scale variability.


Some suggestions to avoid this problem are as follows:

  • Close down any unneeded applications to free up system resources.
  • Increase the virtual memory allocation for your system.
  • Reduce the size of your dataset to process it in sections.
  • Simplify your data by filtering it. This can be done with tools such as Majority Filter, Aggregate, Shrink, and Focal Statistics.