I have been trying to call the flipper ink! contract from polkadot.js contracts section I keep getting this error. I've build the smart contract using cargo +nightly contract build and am using ink! v4 and cargo-contract 2

error image


1 Answer 1


Still WeightV2 isn't merged in polkadot.js you can look this PR. Because of that you are getting this error. Instead you can use https://github.com/polkadot-js/apps/pull/8538 this one it works fine for now.

  • Thanks so much, it worked Feb 18, 2023 at 3:30
  • considered make it as answer then! @VincentGitonga
    – Ganesh11
    Feb 18, 2023 at 5:45

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