# RF-DETR fails due to reliance on removed internal transformers.utils

**URL:** <https://discuss.roboflow.com/t/rf-detr-fails-due-to-reliance-on-removed-internal-transformers-utils/11882>\
**Category:** 🤝  Community Help\
**Created:** [February 19, 2026, 10:48pm UTC](https://discuss.roboflow.com/t/rf-detr-fails-due-to-reliance-on-removed-internal-transformers-utils/11882 "2026-02-19T22:48:36Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![m\_ocean](https://yyz1.discourse-cdn.com/flex029/user_avatar/discuss.roboflow.com/m_ocean/32/9137_2.png) [@m\_ocean](https://discuss.roboflow.com/u/m_ocean)\
**Post date:** [February 19, 2026, 10:48pm UTC](https://discuss.roboflow.com/t/rf-detr-fails-due-to-reliance-on-removed-internal-transformers-utils/11882/1 "2026-02-19T22:48:36Z")

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Hi! I am running a Roboflow model through a pipeline in Google Colab. I am encountering multiple `ImportError` issues when trying to run `rfdetr` (v1.2.1). The library appears to import several internal utilities from `transformers.utils` (such as `torch_int` and potentially others) that have been removed in recent `transformers` versions.

I have tried downgrading `transformers` (to 4.35.2 and 4.36.2), but the imports still fail.

Could you please specify the exact `transformers` version required for `rfdetr` v1.2.1, or is there a patch available to remove these dependencies on internal utilities?

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**Author:** ![Borda](https://yyz1.discourse-cdn.com/flex029/user_avatar/discuss.roboflow.com/borda/32/9139_2.png) [@Borda](https://discuss.roboflow.com/u/Borda)\
**Post date:** [February 20, 2026, 11:27pm UTC](https://discuss.roboflow.com/t/rf-detr-fails-due-to-reliance-on-removed-internal-transformers-utils/11882/2 "2026-02-20T23:27:53Z")

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It seems you are using way old version sice the latest 1.4.3 and we are about to release 1.5…  
Any reason why you still may need to use that old version? Could you pls try to upgrade?

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**Author:** ![m\_ocean](https://yyz1.discourse-cdn.com/flex029/user_avatar/discuss.roboflow.com/m_ocean/32/9137_2.png) [@m\_ocean](https://discuss.roboflow.com/u/m_ocean)\
**Post date:** [February 21, 2026, 12:59am UTC](https://discuss.roboflow.com/t/rf-detr-fails-due-to-reliance-on-removed-internal-transformers-utils/11882/3 "2026-02-21T00:59:09Z")

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Hi thank you that worked! My collaborator wrote the initial script and I didn’t realize that it was running an old version. How can I find out when updates are released?

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**Author:** ![Borda](https://yyz1.discourse-cdn.com/flex029/user_avatar/discuss.roboflow.com/borda/32/9139_2.png) [@Borda](https://discuss.roboflow.com/u/Borda)\
**Post date:** [February 21, 2026, 11:51pm UTC](https://discuss.roboflow.com/t/rf-detr-fails-due-to-reliance-on-removed-internal-transformers-utils/11882/4 "2026-02-21T23:51:24Z")

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> How can I find out when updates are released?

You can subscribe to the repo watching releases or via PyPI

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**Author:** ![system](https://canada1.discourse-cdn.com/flex029/uploads/roboflow1/original/1X/bb6edbfa56d0cf2ee603f061e9e09103502cc8cc.png) [@system](https://discuss.roboflow.com/u/system)\
**Post date:** [March 14, 2026, 11:52pm UTC](https://discuss.roboflow.com/t/rf-detr-fails-due-to-reliance-on-removed-internal-transformers-utils/11882/5 "2026-03-14T23:52:07Z")

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