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48
  • Cattos.
    Cattos125
    Apr 07, 2025
    Expert Q&A

    How to resolve Heimdall service install and start issues?

    I'm trying to install and start the Heimdall service on my Ubuntu server, but I'm running into errors. Initially, I faced a pre-removal script error during installation, indicating that 'heimdalld.service' was not loaded. Later, after reinstalling, the service couldn't be started as it was not found. Can anyone help me troubleshoot these issues?

    • Polygon Edge
    0
    4
  • loth.broke.
    loth.broke110
    Apr 06, 2025
    Expert Q&A

    How to fix 'Unable to get checkpoint buffer' error in Heimdall?

    I've been trying to run Heimdall after downloading and extracting the snapshots, but right after I start, I receive an 'Unable to get checkpoint buffer' error. What steps should I take to troubleshoot and fix this problem?

    • Polygon PoS
    0
    1
  • ITachi.
    ITachi113
    Apr 05, 2025
    Expert Q&A

    How to mint a token on Polygon Amoy after deploying a smart contract?

    I recently deployed a smart contract on Polygon Amoy, but I'm unsure about the process to mint a token on this network. Previously, I've succeeded in minting on Ethereum Sepolia. I am in the process of mapping tokens across both networks and have deployed contracts on both Sepolia and Amoy. However, I'm confused about the need for sender and receiver contracts. Can anyone provide step-by-step guidance on how to proceed after the token mapping is completed?

    • Smart Contract
    0
    2
  • The Web3 Diva.
    The Web3 Diva107
    Apr 02, 2025
    Expert Q&A

    Can we access transaction logs for deprecated Polygon Mumbai?

    I'm trying to find a way to access the transaction logs for the Polygon Mumbai network, even though it's been deprecated. Is there any workaround or method to retrieve these logs?

    • Polygon PoS
    1
    2
    Best Answer
  • loth.broke.
    loth.broke110
    Mar 31, 2025
    Expert Q&A

    Using heimdallcli in a dockerized local network setup?

    I'm trying to use heimdallcli within my local dockerized network that I set up using matic-cli. My main goal is to send a proposal using this command: heimdallcli tx gov submit-proposal param-change {pathToProposalJSONFile} --validator-id {validatorID} --chain-id {chainID}. However, I'm encountering an error that states: 'Config File "heimdall-config" Not Found in "/var/lib/heimdall/config"'. The config directory doesn't seem to exist in the Docker environment, though I can see logs that suggest Heimdall is functioning. How can I resolve this and get the heimdallcli command working?

    • Polygon PoS
    5
    4
    Best Answer
  • jonamith.
    jonamith172
    Mar 30, 2025
    Expert Q&A

    Groth16 proof verification cost on Polygon vs Ethereum

    I've been trying to figure out the gas cost for verifying a Groth16 proof on the Polygon network. On Ethereum, it is around 250k gas. With my estimation using a gas price of 100 gwei, this would imply around 0.025 POL cost on Polygon. Can anyone confirm if this estimation or cost difference is accurate?

    • Polygon zkEVM
    2
    2
  • Chim.
    Chim100
    Mar 29, 2025
    Expert Q&A

    How to store more than 128 blocks worth of data in Bor?

    I am currently trying to store a month's worth of data when running Bor in full mode, but I can't exceed 128 blocks. Can I change settings or run archives to get around this limit and retain about 30 days of data?

    • Polygon Edge
    3
    2
    Best Answer
  • The Consigliere.
    The Consigliere156
    Mar 27, 2025
    Expert Q&A

    How to fix 'Head state missing' error in Bor node?

    Hey folks, I just ran into an issue with my Bor node today. It's not syncing currently and I'm seeing the error: 'WARN [03-13|16:26:04.518] Head state missing, repairing'. I was previously synced up until today. I'm running a mainnet node, and I need to figure out how to fix this. Can someone please help?

    • Polygon Edge
    2
    2
    Best Answer
  • The Web3 Diva.
    The Web3 Diva107
    Mar 26, 2025
    Expert Q&A

    How to maintain a fast and reliable Polygon node sync?

    I'm trying to maintain my Polygon node to work all the time and ensure fast sync speeds. I have set the maximum peers to 150, but I'm only getting around 120 after a week. I restart my node occasionally and want it to be as close to validators as possible. I already have a few nodes but need more trusted nodes for better sync performance. Could anyone share some good enodes or advice for improving sync speed?

    • Polygon PoS
    2
    2
    Best Answer
  • loth.broke.
    loth.broke110
    Mar 22, 2025
    Expert Q&A

    How to add your token to Polygon Portal bridge?

    Hi everyone! I've deployed my token on the Polygon POS network, but I'm looking to bridge it through the Polygon Portal bridge. I was wondering how I can add my token to the bridge? Initially, I thought all bridges would just handle deployment for me, but from what I understand, the bridging might only work with tokens originally deployed on Ethereum. Any tips on how this process works would be much appreciated!

    • Polygon zkEVM
    2
    2
    Best Answer
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