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I build some custom pallet and today I saw following warning while building my node and I would like to ask: only me has the warning?

warning: some crates are on edition 2021 which defaults to `resolver = "2"`, but virtual workspaces default to `resolver = "1"`
    note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
    note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest

I ask because I want to avoid too much chaos while building.

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  • I was about to ask this a few days ago, but when I changed to the stable compiler it disappeared
    – Simson
    Jun 23 at 3:39
  • I came to the conclusion it did not break anything important
    – Simson
    Jun 23 at 3:40
  • Both resolver 1 and 2 will generate binary identical wasm
    – Simson
    Jun 23 at 4:12

1 Answer 1

Reset to default
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Just add the following to your workspace Cargo.toml:

[workspace]
resolver = "2"

Here are more information on this new resolver. You want this as crates of Substrate are requiring to use this resolver, otherwise you will see weird errors ;)

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