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My rust version is :- enter image description here when i was run cargo build in this dirextory: https://github.com/VegeBun-csj/Proof-Chain/tree/main/pallets/xclient

i got an error: enter image description here

2 Answers 2

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Check your std feature declaration in your pallet. There you need to ensure that for every dependency that you imported with default-features = false you have added to the std feature declaration with crate/std.

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  • thank you sir, i have solve it.
    – bun
    Mar 24, 2022 at 7:02
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I encountered this recently, and the underlying issue was that I had multiple versions of the Substrate git repo being referenced in different Cargo.toml files.

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