Ethereum Bitcoin Transaction Error: Mempool Min Fee Not Met
(BTC) and other cryptocurrencies. «Mempool Min Fee Not Met» Error on your Bitcoind Client.
What is Mempool?
In the Ethereum blockchain, a mempo is a queue of transactions waiting to be executed by the network. Mempool and meets special conditions (such as having sufficient balance and sufficient time since the last update), it can be executed,
Error #26: Mempool Min Fee Not Met
When You Encounter The Following Message:
BitcoindException (super = com.neemre.btcdcli4j.core.bitcoIntException:
Error #-26: 66: Mempool Min Fee Not Met, Code = -26)
It is indicates that the bitcoind has encountered an error when trying to execute a transaction due to insufficient space in the mempool. This error can be caused by various factors, including:
- Insufficient Available Space in the Mempool
- Excessive Network Congestion
- High Demand for Bitcoin Transactions
Solutions to Resolve Mempool Min Fee Not Met Error
To resolve this issue, follow these steps:
- Increase the Mempool size : For example:
.
- Adjust network congestion : Parameter, such as:
* Bitcoind -Network = ETH1 to use the Ethereum Network instead of the default testnet.
- Increase Mempool size in large-scale scenarios :
- .
- Increase Bitcoin Transaction Processing Time :
- Check for updates and bug fixes : Ensure that bitcoind is updated to the latest version, as newer versions often address performance and security issues.
Additional Tips

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«Mempool Min Fee Not Met» Error and continue
