Title: Solana: Getting Block Height Exceeded Errors When Minting NFTs with Metaplex

Introduction

Mining non-fungible tokens (NFTs) on the Solana blockchain can be an exciting experience. However, I have come across an error that is causing problems with my attempts to mint NFTs on the platform: “Block Height Exceeded”. This article will walk you through the troubleshooting steps and provide solutions to resolve this issue.

Problem

While trying to mint NFTs with Metaplex, I have noticed that I am getting the infamous “Block Height Exceeded” error. This occurs when my transaction exceeds the maximum allowed block height on Solana. As a result, the blockchain rejects the transaction and I have to restart from the beginning.

Solution

Fortunately, there are a few solutions to fix this problem:

1. Add a Priority Fee to Tx

One way to fix this problem is to add a priority fee to your transaction using the --priority-fee option when sending your NFT mint transaction. Here is an example of how to do it:

solana mint --tx-priority-fee=1000 mymetaplex-nft.json

This will set the priority fee for the transaction to 1000 SPK (Solana Plasma Kintsugi). The–priority-feeoption is a new feature introduced in Solana 1.10 and allows you to set your own transaction fee.

2. Use a different transaction structure

Alternatively, you can try using a different transaction structure that does not rely on the–priority-feeoption. One approach is to use thesolana mint –tx-type=script` command with a script that contains a function that adds a priority fee:

solana mint --tx-type=script mymetaplex-nft.json \
"function addPriorityFee(amount: u128) {
if (amount > 0) {
const fee = wait solana.client.fee(1000);
returned amount + fee;
} else {
returned amount;
}
“

This script adds a priority fee to the transaction amount before minting the NFT.

3. Check Solana Documentation and Forums

Before trying these solutions, I recommend checking the official Solana documentation and forums for updates or new information on this issue.

Conclusion

Minting NFTs on the Solana blockchain can be a bit tricky at times, but with the right approach, you should be able to solve the problem. “Block Height Exceeded” error. By adding priority fees to your transactions or using alternative transaction structures, you can overcome this issue and successfully mint your NFTs.

Recommendations

• Make sure to review the latest Solana documentation for changes or updates regarding this issue.

• If you are having issues with Metaplex, try updating to the latest version of the platform (1.10.x or later).

• Consider using a different transaction structure that does not rely on priority fees.

I hope this article was helpful in resolving your “Block Height Exceeded” error when minting NFTs on Solana!

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