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We had a problem with our testnet and had to rebuild it from a snapshot, recreating all of our nodes. We have some validator and archive nodes in a North Virginia (NV) data center, and we normally run ...
Kristofer Bitney's user avatar
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Can I use the snapshot (.snap) file created with try-runtime-cli to sync a validator node faster?
Kristofer Bitney's user avatar
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We encountered a problem with our live testnet (a substrate-based EVM chain). We don't want to reset the whole testnet, but we need to fork the network. The problem is that the new validator nodes are ...
Kristofer Bitney's user avatar
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I called setCode with a runtime upgrade that has crashed our testnet blockchain network. New blocks are not being produced. We don't know what caused the problem. We are trying to avoid a full network ...
Kristofer Bitney's user avatar
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I'm running Substrate v1.17 and want to snapshot the Election Provider (multi-phase / multi-block) module to obtain election data. I attempted to query the module's storage via RPC, but it returns ...
Karanvir Singh's user avatar
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sync from scratch (polkadot-parachain 1.19.1-f3969c7ddd3) command : /root/polkadot-parachain --name btse_westend_asset_hub --rpc-external --rpc-port 8800 --rpc-cors all --chain asset-hub-westend --...
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I’d like to run a full node for either the Westend Asset Hub or the Passet Hub. However, I can’t find a single step-by-step guide that explains: The exact command(s) required to start the node (e.g., ...
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I’m trying to withdraw unbonded funds from a nomination pool, but I keep hitting the delegatedStaking.notEnoughFunds error when calling: nominationPools.withdrawUnbounded(poolId, memberAccount) The ...
Jim's user avatar
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I’m integrating the newly added pallet-revive into my chain. The chain is live and currently uses 18 decimals. I’ve already updated the NativeToEthRatio to 1 (previously it was 1_000_000 when the ...
Arunjot Singh's user avatar
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I’m running a Substrate-based chain that includes pallet-conviction-voting, and one of our validators is facing an issue with frozen tokens due to expired referendum locks. Here’s the situation: The ...
Boleng's user avatar
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Substrate can be used to develop both standalone blockchains and parachains connected to the Polkadot relay chain. Each approach has architectural, operational, and ecosystem-level implications. MY ...
Firdous Ahmad Mala's user avatar
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How can I run Westend Asset Hub locally to check eth interactions and debug it in depth?
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error[E0432]: unresolved import `pallet_timestamp::GenesisConfig` | 26 | use pallet_timestamp::GenesisConfig as TimestampGenesisConfig; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^...
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Experimenting with archive nodes, we are finding that any node started with any kind of archive flag, will refuse to sync past block 4097 specifically. This includes validators started with the --...
KathrynColleen's user avatar
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I'm working on a Substrate/Frontier-based blockchain and have implemented a custom fee-handling logic using the OnChargeTransaction trait from the pallet_transaction_payment pallet. However, it seems ...
dbp's user avatar
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I've recently attempted to introduce a delay in the block announcement mechanism in the SyncingEngine, but it doesn't seem to take effect as expected. Additionally, pre-validating block announcement ...
Discardo's user avatar
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I'm working with the polkadot-sdk-solochain-template and have successfully executed contract calls using JavaScript (via polkadot‑js). However, I'm facing challenges when trying to call smart contract ...
sithum ravishka's user avatar
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I'm using the parachain node template from polkadot-sdk (2409-1) and when I start the node with these relaychain arguments: --sync warp --state-pruning 256 --blocks-pruning 256, it appears that once ...
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i am using polkadotsdk version 1.11 and i am studying opengov dao for my project which is running on opengov . while going through it i came to whitelist column and also got to know about technical ...
Karanvir Singh's user avatar
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I'm using the Substrate blockchain and recently upgraded our chain from v0.9.27 to v0.9.42. However, the eth_getTransactionByHash function is failing to fetch transaction details, returning the ...
Mr. Sulaman Khan's user avatar
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I want to make sure that I can use https://github.com/subscan-explorer/subscan-essentials.git and get a similar UI that is used in explorers like https://polkadot.subscan.io/ https://kusama.subscan....
Yadee's user avatar
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I observed a huge amount of the estimated generated weights after running benchmarking on production environment. Curious what is the root cause of it? /// Storage: `Nfts::Item` (r:1 w:1) /// Proof: `...
Tin Chung's user avatar
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I'm trying to run solochain-template-node with changed consensus from aura to babe with custom chainspec created based on chain=local using command: ./target/release/solochain-template-node --base-...
saynomore's user avatar
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I’m working on a Substrate-based blockchain and have defined tokenSymbol, tokenDecimals, and ss58Format properties in the ChainSpec as follows: Some(json!({ "ss58Format": 42, "...
Mr. Sulaman Khan's user avatar
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I'm using polkadot-sdk-solochain-template with customization. Now, I'm trying to run the node with cargo run --release -- --dev and got this: So, the main problem is Service(Client(VersionInvalid(&...
saynomore's user avatar
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I'm trying to build polkadot-solochain-template with some customizations and got this error: error[E0152]: found duplicate lang item `panic_impl` --> /home/viktor/.cargo/registry/src/index....
saynomore's user avatar
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I'm building custom solochain using polkadot-sdk-solochain-template. After I've added some dependencies and fixed error with implementation I'm starting to get the sp-io error: cannot find function `...
saynomore's user avatar
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I am working on a Substrate-based blockchain and need to generate keys for my network, which uses a custom SS58FORMAT = 567. I am using the key subcommand from my Substrate node executable. However, ...
Superluminal's user avatar
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There seems to be a frame-metadata crate error where 2 versions are being referenced which is causing the error. The 2 versions are v16.0.0 and v18.0.0. The issue is that the substrate-wasm-builder ...
Md. Raisul Islam Rony's user avatar
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Trying to create an asset via the Polkadot apps interface, but encountering the error: balances.InsufficientBalance. Attempting to create the asset with a sudo account. There are sufficient funds in ...
splagov's user avatar
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I am using ethers.js to estimate the gas for a transaction on a Substrate-based chain with EVM compatibility. However, I received the following error: Module(ModuleError { index: 55, error: [4, 0, 0, ...
CocDap's user avatar
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2 answers
188 views

I am currently working on a Substrate-based solo chain that has migrated from polkadot-v0.9.34 to polkadot-v0.9.35 and is now on the stable branch 2409. In v0.9.35, the Sandbox host functions were ...
Deepak Chaudhary's user avatar
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Does freeing or updating the storage map or any runtime storage in substrate deletes the old that in blockchain? Does it done through pruning?
Amiya Behera's user avatar
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i have my substrate blockchain running with 3 validator setup .when i add more than 1 validator on single node and i.e sometimes even 3 or 4 the finalization of my chain stops . what is the reason ...
Karanvir Singh's user avatar
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Earlier the blocks were getting mined with an average of 6 seconds. Now the average time to mine a new block since a day is 9 minutes. All the validator nodes are active.They're running their nodes on ...
Deepu Harry's user avatar
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I'm new to substrate.I'm following the a tutorial on youtube https://www.youtube.com/watch?v=G897F8Gw1PM&list=PL5dTjWUk_cPYdb4j2RH8BHEAK3z_ZME1j&index=2 and the substrate docs to build a local ...
Deepu Harry's user avatar
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I am working on a project at bittensor blockchain, where I have delegated my wallet to a proxy address allow proxy to perform staking ops on delegated wallets' behalf. But when I am trying to stake ...
Ishwar Parmar's user avatar
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1 vote
1 answer
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I am trying to work with the default flipper contract with react js based on the link: https://github.com/dedotdev/dedot. I am trying to follow the Submitting transactions section. First of all, I am ...
zubayr khalid's user avatar
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1 answer
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I am working on a Substrate based chain. I want to make sure my chain is up to par for Polkadot community. For example: my chain should use latest Polkadot SDK stable version. Are there other things, ...
Boleng's user avatar
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3 votes
2 answers
78 views

I got this error below when running psvm -v 1.13.0 error[E0433]: failed to resolve: use of undeclared crate or module `alloc` --> /Users/chungquantin/.cargo/registry/src/index.crates.io-...
Tin Chung's user avatar
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I am trying to upgrade the base-parachain to v1.13.0 and got an issue with the frame-benchmarking. This error coming from the frame-benchmarking crate which throws an error error[E0433]: failed to ...
Tin Chung's user avatar
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4 votes
1 answer
124 views

I am trying to upgrade my parachain node from v1.12.0 to v1.13.0 using psvm but it does not compile successfully due to some mismatch conversion error of libp2p. I believe this PR must cause that ...
Tin Chung's user avatar
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I am running solo chain with 4 validators. What I did wrong: I rotated session keys of second validator and by mistake, I set those keys as a part of first validator>>Session Keys. After that, ...
Boleng's user avatar
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1 vote
2 answers
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Hi I am trying to run try-runtime to verify runtime upgrade but getting below error after migration is executed. storage updated to v2! Migrated 124247 clouds ✅ 2024-07-20T13:41:19.4485438Z [2024-07-...
Boleng's user avatar
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1 vote
1 answer
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I have a solo chain using Babe consensus. In my new branch, I implemented OneSessionHandler in one of my pallets. I am using this to collect active validators. It's working fine if I run chain with my ...
Boleng's user avatar
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2 votes
0 answers
34 views

Is there a way to increase the requests per second (RPS) on chain after its deployment. I want to fetch the transactions and block details faster than the default value on an application that I am ...
Shubham Gupta's user avatar
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I have added a clippy check #![warn(clippy::missing_docs_in_private_items)] on the top of my pallet. I have added documents at all required places. However I am still getting below errors for #[pallet:...
Boleng's user avatar
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impl pallet_staking::Config for Runtime { type RewardRemainder = Treasury; } How can I give it to sudo account
Newt's user avatar
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I need to create merkle root of given hashes. pub type MmrRootHash = H256; pub fn create_merkle_root(leaves: Vec<MmrRootHash>) -> MmrRootHash { .. } Is there any library ...
Boleng's user avatar
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1 vote
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I want to upgrade my chain to latest polkadot version. When I checked the Polkadot-SDK repo. I found two branches: release-polkadot-v1.12.0 and polkadot-v1.12.0. When I compare both branches, release-...
Boleng's user avatar
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