# Investigate on A3D\_LOAD\_CANNOT\_LOAD\_MODEL in C# HOOPS Exchange

**URL:** <https://forum.techsoft3d.com/t/investigate-on-a3d-load-cannot-load-model-in-c-hoops-exchange/5209>\
**Category:** HOOPS Exchange\
**Tags:** exchange, how-to\
**Created:** [September 2, 2026, 3:25pm UTC](https://forum.techsoft3d.com/t/investigate-on-a3d-load-cannot-load-model-in-c-hoops-exchange/5209 "2026-09-02T15:25:22Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![giulia.picciau](https://avatars.discourse-cdn.com/v4/letter/g/53a042/32.png) [@giulia.picciau](https://forum.techsoft3d.com/u/giulia.picciau)\
**Post date:** [September 2, 2026, 3:25pm UTC](https://forum.techsoft3d.com/t/investigate-on-a3d-load-cannot-load-model-in-c-hoops-exchange/5209/1 "2026-09-02T15:25:22Z")

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Hello,

I am able to load and process CAD files with the HOOPS Exchange C# API, but on a specific Naviswork model the loading process fails. I have pinpointed the issue being in the call to `API.A3DAsmModelFileLoadFromFile`, which returns `A3DStatus.A3D_LOAD_CANNOT_LOAD_MODEL`.

The same issue appears on that same model with the C++ API.

Since it seems a quite generic error message to receive, is there a way I can figure out what’s wrong with either the model or some load parameter that needs to be adjusted?

Thanks

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**Author:** ![tino](https://avatars.discourse-cdn.com/v4/letter/t/9dc877/32.png) [@tino](https://forum.techsoft3d.com/u/tino)\
**Post date:** [September 4, 2026, 2:42pm UTC](https://forum.techsoft3d.com/t/investigate-on-a3d-load-cannot-load-model-in-c-hoops-exchange/5209/2 "2026-09-04T14:42:08Z")

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Hello @giulia.picciau,

Indeed, the error message is a bit too general to make a meaningful assessment on the underlying. For such issues, we kindly request that you please create a support ticket in our [Support Portal](https://partner.support.techsoft3d.com/helpcenter/sdk/portal/7). We will also need the NWD file to conduct our investigation.

Thanks,  
Tino