# Tensorflow driver : UNKNOWN ERROR (303)

**URL:** <https://forum.rasa.com/t/tensorflow-driver-unknown-error-303/21661>\
**Category:** Rasa Open Source\
**Created:** [November 25, 2019, 9:41am UTC](https://forum.rasa.com/t/tensorflow-driver-unknown-error-303/21661 "2019-11-25T09:41:21Z")\
**Posts on this page:** 1\
**Showing post:** 10

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**Author:** ![d7x](https://avatars.discourse-cdn.com/v4/letter/d/8baadc/32.png) [@d7x](https://forum.rasa.com/u/d7x)\
**Post date:** [January 6, 2020, 8:14pm UTC](https://forum.rasa.com/t/tensorflow-driver-unknown-error-303/21661/10 "2020-01-06T20:14:03Z")

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Same problem with

OS Ubuntu 18.04.3 (virtual environment, vmware) Python version: 3.6.9

tensorflow packages: tensor2tensor==1.14.1 tensorboard==1.15.0 tensorflow==1.15.0 tensorflow-datasets==1.3.2 tensorflow-estimator==1.15.1 tensorflow-gan==2.0.0 tensorflow-hub==0.7.0 tensorflow-metadata==0.15.2 tensorflow-probability==0.7.0

Could the issue be related to cuda not being installed? I checked my Ubuntu folders and cuda isn’t installed. Two questions:

1. Can Rasa run with the tensorflow-gpu version?
2. Should cuda be installed if running a cuda-compatible Nvidia graphics card?

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