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Ethereum Gas Estimation Error: Unable to Deploy on BSC Testnet
As an Ethereum developer, you are probably no stranger to deploying smart contracts on various testnets. However, when it comes to deploying on the Binance Smart Chain (BSC) testnet, things can quickly get messy due to a common issue — gas estimation errors.
Problem: Error Code 32000
We encountered an error code 32000 while trying to deploy our Ethereum-based smart contract on the BSC testnet. This code is often associated with gas estimation errors, which occur when the estimated gas limit for a given transaction exceeds the available gas on the blockchain.
Troubleshooting Steps
To resolve this issue, we have tried the following steps:
- RPC URL: We have attempted to deploy our smart contract on the BSC testnet using the provided RPC URL: ` However, we are experiencing issues with gas estimation errors.
- Chain ID: Our contract chain ID is set to 97, but this did not make a difference in resolving the issue.
- Gas Estimation Library: We have verified that our gas estimation library is up to date and configured correctly.
Common Causes of Gas Estimation Errors
Before exploring possible solutions, let’s identify some common causes of gas estimation errors:
- Low Gas Price: If the gas price is too low, it can lead to an estimated gas limit that exceeds the available gas.
- Insufficient Gas: If there is not enough gas allocated for a transaction, gas estimation errors can occur.
- Incorrect Chain ID
: Using the wrong chain ID can lead to gas estimation errors.
Workarounds
To resolve our issue, we implemented the following workarounds:
- Increase Gas Price: We increased the gas price on the BSC testnet to 10 ETH per transaction to increase the estimated gas limits.
- Reallocate Gas: We reallocated some of our available gas allocation from other contracts to this specific smart contract to ensure sufficient gas for transactions.
- Use a more accurate library: We updated our gas cost estimation library to the latest version, which provides more accurate estimates.
Conclusion
As we continue to deploy and test our Ethereum-based smart contracts on various networks, including the BSC testnet, it is essential to address gas estimation errors that can hinder our progress. By implementing these solutions, we were able to resolve our issue and successfully deploy our contract on the BSC testnet.
Additional Troubleshooting Tips
For those experiencing similar issues:
- Make sure your smart contract library is up to date and configured correctly.
- Verify that the gas price is sufficient for transactions.
- Reallocate gas allocations as needed to avoid insufficient gas limits.
- Monitor gas consumption and adjust estimates accordingly.
By following these steps and adjusting our approach, we were able to resolve the issue with gas estimation errors on the BSC testnet.