# \#pkg-update

**URL:** https://discourse.julialang.org/tag/pkg-update/1652.md

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## [Overdetermined ODEProblem after upgrading from MTK v8.75.0 to MTK v9.72.0](https://discourse.julialang.org/t/overdetermined-odeproblem-after-upgrading-from-mtk-v8-75-0-to-mtk-v9-72-0/128163)

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**Author:** [@celia.bat](https://discourse.julialang.org/u/celia.bat)\
**Replies:** 2\
**Last updated:** [April 18, 2025, 7:25am UTC](https://discourse.julialang.org/t/overdetermined-odeproblem-after-upgrading-from-mtk-v8-75-0-to-mtk-v9-72-0/128163 "2025-04-18T07:25:03Z")

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Hi all :waving\_hand: I’m currently upgrading a model from ModelingToolkit v8.75.0 (which worked fine), to v9.72.0. I’m now running into an issue where my ODEProblem fails to initialize, even though my model contains c…

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## [Endless "Authentication failed" loop when updating packages](https://discourse.julialang.org/t/endless-authentication-failed-loop-when-updating-packages/125079)

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**Author:** [@stefkuypers](https://discourse.julialang.org/u/stefkuypers)\
**Replies:** 3\
**Last updated:** [January 23, 2025, 2:20pm UTC](https://discourse.julialang.org/t/endless-authentication-failed-loop-when-updating-packages/125079 "2025-01-23T14:20:55Z")

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I’m getting stuck in an endless :Authentication failed" loop when I try to update my packages. I first got warnings that the authorisation for the toll v2 files could not be done and started looking for answers to that.…

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## ["could not download... /registries" error](https://discourse.julialang.org/t/could-not-download-registries-error/123555)

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**Author:** [@bernie](https://discourse.julialang.org/u/bernie)\
**Replies:** 1\
**Last updated:** [December 13, 2024, 6:15pm UTC](https://discourse.julialang.org/t/could-not-download-registries-error/123555 "2024-12-13T18:15:52Z")

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pkg\> add Makie Resolving package versions… I’m getting the following error whenever I run a pkg command: ┌ Warning: could not download https://pkg.julialang.org/registries │ exception = RequestError: SSLRead() return…

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## [Could not download registries](https://discourse.julialang.org/t/could-not-download-registries/118486)

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**Author:** [@Stephen](https://discourse.julialang.org/u/Stephen)\
**Replies:** 7\
**Last updated:** [August 26, 2024, 12:46pm UTC](https://discourse.julialang.org/t/could-not-download-registries/118486 "2024-08-26T12:46:08Z")

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Installing known registries into \`~/.julia\` ERROR: could not download https://pkg.julialang.org/registry/23338594-aafe-5451-b93e-139f81909106/b39454141b62a8b7203e96a34b9ba6cd7f79815d Exception: RequestError: HTTP/2 30…