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I'm following instructions in substrate document. I build contract flipper and get this error:
How can I fix this error? Thanks
cargo +nightly-2022-08-15 test
cargo +nightly test
cargo +nightly-2022-08-15 contract build
cargo +nightly contract build
cargo contract version cargo-contract 1.5.0-unknown-x86_64-apple-darwin
rustc 1.66.0-nightly (c0983a9aa 2022-10-12))