I'm trying to deploy basic erc20 example contract on rococo canvas but "contracts.ContractTrapped" error popped on deployment? most probably it's a problem in INK release version. I'm using rs7. Any hint will be much appreciated, Thanks!

  • Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer.
    – Community Bot
    Feb 10, 2022 at 21:16
  • @Rehan this is a bit outdated by now. We've recently released ink! 3.0 and pushed a few updates to the Canvas runtime as well as the substrate-contracts-node.
    – HCastano
    Mar 24, 2022 at 0:53

1 Answer 1


There is a fix for the ContractTrapped error which just got merged.

Deployment will work on Rococo Canvas soon, after an update which is in progress.

Until then, you can test your contracts on a local node https://github.com/paritytech/substrate-contracts-node Make sure you have the latest versions, which at this time are:

  • ink 3.0.0 RC8
  • substrate-contracts-node v0.6.0
  • cargo-contract v0.17.0

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