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Bug

Buffer fails and returns the error message "ERROR 999999: Something unexpected caused the tool to fail. Contact Esri Technical Support" when ARCTMPDIR is set to a folder that does not exist or is not accessible.

ArcGIS Pro
Bug ID Number BUG-000181313
SubmittedNovember 29, 2025
Last ModifiedDecember 18, 2025
Applies toArcGIS Pro
Version found3.6
Operating SystemWindows OS
Operating System Version11.0 64 bit
StatusUnder Consideration

Workaround

Use the Pairwise Buffer tool or ensure the ARCTMPDIR folder exists.

Steps to Reproduce

Bug ID: BUG-000181313

Software:

  • ArcGIS Pro

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