# The following package names could not be resolved: in manifest but not in project

**URL:** <https://discourse.julialang.org/t/the-following-package-names-could-not-be-resolved-in-manifest-but-not-in-project/86509>\
**Category:** General Usage\
**Tags:** question, package, manifest, project\
**Created:** [August 29, 2022, 5:34pm UTC](https://discourse.julialang.org/t/the-following-package-names-could-not-be-resolved-in-manifest-but-not-in-project/86509 "2022-08-29T17:34:53Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Xavier\_Gonzalez](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/xavier_gonzalez/32/36033_2.png) [@Xavier\_Gonzalez](https://discourse.julialang.org/u/Xavier_Gonzalez)\
**Post date:** [August 29, 2022, 5:34pm UTC](https://discourse.julialang.org/t/the-following-package-names-could-not-be-resolved-in-manifest-but-not-in-project/86509/1 "2022-08-29T17:34:53Z")

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I am getting weird errors with ChainRules in Julia 1.8

To try to fix the problem, I went into the package manager for my project, and tried both `rm ChainRules` and `rm Zygote`. Both times I got the following error message:

```julia
ERROR: The following package names could not be resolved:
 * Name (UUID in manifest but not in project)

```

Just to check my understanding, I think that is because the only package I’m really downloading in `Project.toml` is `Flux`, which then has dependencies in `Zygote` and `ChainRules`, and those dependencies are noted in `Manifest.toml` but not in `Project.toml`

Does this seem like a correct understanding of what is going on?

---

<div class="post-metadata">

**Author:** ![digital\_carver](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/digital_carver/32/33818_2.png) [@digital\_carver](https://discourse.julialang.org/u/digital_carver)\
**Post date:** [August 29, 2022, 6:42pm UTC](https://discourse.julialang.org/t/the-following-package-names-could-not-be-resolved-in-manifest-but-not-in-project/86509/2 "2022-08-29T18:42:05Z")

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Yes.

The text could certainly be clearer here, but the message is that `rm` is for dealing with direct dependencies of your project, but `Pkg` could only find this package (`ChainRules`/`Zygote`) in Manifest.toml.