I am running through https://docs.substrate.io/tutorials/smart-contracts/prepare-your-first-contract/#deploy-the-contract and hitting an issue when deploying the flipper ink! contract with this log message from the node:

DEBUG tokio-runtime-worker runtime::contracts: sign extension operations support is not enabled (at offset 0x1efd)

I am using the following:

substrate-contracts-node version 0.23.0-87a3d76c880

cargo-contract 1.5.1-unknown-aarch64-apple-darwin

I generated the contract with: cargo contract new flipper

and the contract WASM with: cargo +nightly contract build

1 Answer 1


Looks like adding --optimization-passes=0 sorted this out when building the contract

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