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Add multiple dependency error faq

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Dániel Buga 2023-11-27 18:26:52 +01:00
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docs/modules/ROOT/pages/faq.adoc
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@ -116,3 +116,22 @@ features = [
# ...
]
----
== Error: `Only one package in the dependency graph may specify the same links value.`
You have multiple versions of the same crate in your dependency tree. This means that some of your
embassy crates are coming from crates.io, and some from git, each of them pulling in a different set
of dependencies.
To resolve this issue, make sure to only use a single source for all your embassy crates! To do this,
you should patch your dependencies to use git sources using `[patch.crates.io]` and maybe `[patch.'https://github.com/embassy-rs/embassy.git']`.
Example:
[source,toml]
----
[patch.crates-io]
embassy-time = { git = "https://github.com/embassy-rs/embassy.git", rev = "e5fdd35" }
----
Note that the git revision should match any other embassy patches or git dependencies that you are using!