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Unanswered Questions

120 questions with no upvoted or accepted answers
7 votes
0 answers
195 views

How to generate a Moonbeam Unified Account using Subkey?

In the Moonbeam Unified documentation here, it says that Moonbeam natively supports "Ethereum-style address (H160 format), which is 40+2 hex-characters long, in a Substrate based chain" and ...
6 votes
0 answers
215 views

Subxt call to custom pallet method returning `wasm 'unreachable'` - (`TaggedTransactionQueue_validate_transaction`)

So I am trying to submit extrinsics to a running parachain node using subxt, but encounter a Codec error. The parachain is based on the substrate-parachain-template, the relay chain is compiled ...
6 votes
0 answers
234 views

How to use the default Substrate CLI rpc-cors values without using rpc-cors=all for a Collator node and connect from Polkadot.js Apps

I want to be able to connect a collator node using https://polkadot.js.org/apps that is based on the substrate-parachain-template using branch 'polkadot-v0.9.18' and is being run as a parachain in ...
5 votes
0 answers
42 views

Benchmarks not getting skipped with Err(BenchmarkError::Skip)

I am using the pallet_xcm_benchmarks, in the config for pallet_xcm_benchmarks::generic, I have used impl pallet_xcm_benchmarks::generic::Config for Runtime { fn worst_case_asset_exchange() -> ...
5 votes
0 answers
38 views

eip-681 equivalent for Polkadot to generate qrcodes

I'm developing an app and there I have the possibility to generate qrcodes to ask for payments in multiple blockchains using multiple tokens. For EVM blockchains I do have the eip681 to guide me (...
5 votes
0 answers
94 views

fp_evm::GenesisAccount causes StakingElection.fail

As the title says, I have added EVM Compatibility to my NPoS runtime(using chainsafe/substrate-node-template), and when i run my node with Alice and Bob validators, the StakingElection begins to fail. ...
5 votes
0 answers
290 views

XCM Barrier blocked execution: when transferring XC-20 between 2 local Moonbase parachains

The setup is: polkadot-launch 1 relay chain: polkadot-0.9.18 rococo 2 parachains: moonbeam-0.24.0 moonbase-local paraId 1000 paraId 1001 open hrmp channel via polkadot-launch Transferring DOT ...
4 votes
1 answer
146 views

Parathread not producing block on Rococo registered using CoreTime

I am trying to list a parathread on Rococo using core time. I have followed all instructions mentioned here. I followed below steps: I registered a ParaId and onboarded Parathread as usual but didn't ...
4 votes
0 answers
171 views

EVM compatible chains and Substrate Bridges

I am looking for a bridging solution between EVM compatible chains and a substrate-based solo chain (i.e. not a parachain). The bridges is purely for cross chain asset transfer. I am aware of the ...
3 votes
0 answers
39 views

Why is the index of a pallet a u32(usize) instead of u8 when queried?

I'm implementing a flow where I first ask what index a pallet has with the QueryPallet xcm instruction, and then construct a call to use with Transact. I see that to construct manually an encoded call ...
3 votes
0 answers
74 views

XCM via governance

Hi All I am currently embarking on trying to send funds from the treasury via XCM I am fairly certain this isn't possible right now because the treasury origin does not have send rights. I am ...
3 votes
0 answers
60 views

Failed to execute hrmp open request on polkadot

We recently sent XCM messages from Phala to Polkadot to send HRMP open requests to PolkaDex parachain. We constructed the message as usual, but the message failed to execute on Polkadot. I haven't ...
3 votes
0 answers
96 views

How does XCM remote locking work?

Hey valuable Substrate masterminds, I wonder how to use this new XCMv3 remote lock feature on a parachain. Consider these references: remote locking tests Asset lock trait Remote locking PR by Gavin ...
3 votes
0 answers
37 views

the function or associated item `offchain_worker` exists for struct

i wanna add a new pallet in substrate runtime.rs this is the contract of the file : #![cfg_attr(not(feature = "std"), no_std)] /// Edit this file to define custom logic or remove it if it ...
3 votes
0 answers
44 views

How to execute/apply extra logic when xcm call delivered and deposit is succeed? or register callback?

I want to execute extra logic when xcm call deliver and deposit succeed. I can pass extra parameters in beneficiary MultiLocation with a description what todo next. I have a MultiLocation ...

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