---
title: "unhandled error: CUDA error: the provided PTX was compiled with an unsupported toolchain"
description: "This article explains what causes the \"unhandled error: CUDA error: the provided PTX was compiled with an unsupported toolchain\" error and how to resolve it"
---

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March 5, 2026

# unhandled error: CUDA error: the provided PTX was compiled with an unsupported toolchain

## This article explains what causes the "unhandled error: CUDA error: the provided PTX was compiled with an unsupported toolchain" error and how to resolve it

When running the MLS Urban Comprehensive Clasifcation in RiPROCESS, the following error can be encoutered:

> unhandled error: CUDA error: the provided PTX was compiled with an unsupported toolchain

Most probably the issue is related to the NVIDIA driver version. Please note that AI MLS Classification tool uses CUDA 12.8. CUDA 12.8 needs Windows x86\_64 Driver Version 570.65   
Please go to https://www.nvidia.com/en-us/drivers/, download the driver that meets the requirement and give a try.

 

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