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Bug

The Convert LAS tool fails and returns ERORR 999999 for a specific United States Geological Survey (USGS) dataset.

Last Published: November 7, 2022 ArcGIS Pro
Bug ID Number BUG-000146593
SubmittedFebruary 3, 2022
Last ModifiedJune 13, 2025
Applies toArcGIS Pro
Version found2.9.1
Operating SystemWindows OS
Operating System Version10.0
Version Fixed3.1
StatusFixed

Additional Information

This issue is addressed in ArcGIS Pro 3.1. The issue is caused by LAZ 1.4 files written with specific versions of LASzip that wrote an improper spatial reference Well-known text (WKT) information in the Extended variable length records (EVLR). To overcome this issue, it is necessary to drop the extended variable length records (EVLR) and assign a valid spatial reference. There is an existing issue to return a proper error message when such a file is encountered since many files were created with this issue.

Workaround

Overwrite the spatial reference. Use ArcGIS Pro 3.1 as it is better at handling the LAS file. The correct output is generated when a projection is defined.

Steps to Reproduce

Bug ID: BUG-000146593

Software:

  • ArcGIS Pro

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