# Pytensor g++ not detected

**URL:** <https://discourse.pymc.io/t/pytensor-g-not-detected/13021>\
**Category:** v5\
**Created:** [September 29, 2023, 4:28pm UTC](https://discourse.pymc.io/t/pytensor-g-not-detected/13021 "2023-09-29T16:28:06Z")\
**Posts on this page:** 1\
**Showing post:** 15

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**Author:** ![aakhmetz](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.pymc.io/aakhmetz/32/1500_2.png) [@aakhmetz](https://discourse.pymc.io/u/aakhmetz)\
**Post date:** [October 1, 2023, 8:29am UTC](https://discourse.pymc.io/t/pytensor-g-not-detected/13021/15 "2023-10-01T08:29:06Z")

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maybe you can check this thread [Performance tip if you're on ARM64 (Apple's M1/M2 chips): Install accelerate](https://discourse.pymc.io/t/performance-tip-if-youre-on-arm64-apples-m1-m2-chips-install-accelerate/12495)

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_[View the full topic](https://discourse.pymc.io/t/pytensor-g-not-detected/13021)._