2
  1. chain-spec.rs In Open Message Passing Channels guide, use the parachain-template.js parachain_id of 1000, 1001 respectively.

  2. Add sudo pallet to runtime/lib.js.

impl pallet_sudo::Config for Runtime {
    type RuntimeEvent = RuntimeEvent;
    type RuntimeCall = RuntimeCall;
}

construct_time!(
....
// Sudo: pallet_sudo, // or next line does not success open channel
Sudo: pallet_sudo::{Pallet, Call, Storage, Config<T>, Event<T>},
....
)
  1. Use cargo build -release for node/src/chain-spec.rs with parachian_id = 1000 and 1001 respectively.

  2. Start a test network with zombienet, where config.toml is configured according to the Simulate Parachains documentation.

[relaychain]
default_command = "polkadot-v0.9.32"
default_args = [ "-lparachain=debug" ]

chain = "rococo-local"

  [[relaychain.nodes]]
  name = "alice"
  validator = true
  ws_port = 9900


  [[relaychain.nodes]]
  name = "bob"
  validator = true
  ws_port = 9901

  [[relaychain.nodes]]
  name = "charlie"
  validator = true
  ws_port = 9902

  [[relaychain.nodes]]
  name = "dave"
  validator = true
  ws_port = 9903

[[parachains]]
id = 1000
cumulus_based = true

  [parachains.collator]
  name = "parachain-A-1000-collator01"
  command = "parachain-A-template-node-v0.9.32"
  ws_port = 9910

[[parachains]]
id = 1001
cumulus_based = true

  [parachains.collator]
  name = "parachain-B-1001-collator01"
  command = "parachain-B-template-node-v0.9.32"
  ws_port = 9920

[[hrmpChannels]]
sender = 1000
recipient = 1001
maxCapacity = 8
maxMessageSize = 8000

[[hrmpChannels]]
sender = 1001
recipient = 1000
maxCapacity = 8
maxMessageSize = 8000
  1. The question arises. When I follow the documentation step by step, there is no hrmp.OpenChannelRequested event in the recent time of the relay chain when the transaction is submitted, and ump.ExecutedUpward shows incomplete.

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1
  • The extrinsic didn't show an error? Your ump.ExecutedUpward event shows an error: FailedToTransactAssets
    – Alex Bean
    Dec 23, 2022 at 11:19

1 Answer 1

0

Error: Failed to Transact asset means that you don't have balance in your sovereign account of the particular parachain in the relay chain.

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