Solana: Error: failed to get recent blockhash: TypeError: fetch failed in Anchor test

Error: Failed to receive a recent Solana block of hash using an anchor test

The Typeerror: Fetch error message is not successful in an anchor test shows that the anchor test library is not able to extract a recent block hash from the Solana network. This problem can occur for various reasons, including changes in RPC (remotely call the procedure) or problems with compatibility with the Fetch method.

In this article, we will study the possible error solutions and successfully receive recent solar blocks using anchor.

What is a hash block?

Block hash is a unique digital fingerprint of blockchain block. It is a specific transaction and is used to track the history of transactions into the network.

RPC interface Changes: Potential Reason

The Fetch method has undergone changes in the last RPC interfaces, which can affect the way you have access to the hashs of the block. The anchor uses different APIs from some other testing libraries such as Web3.py or Solana-API. To resolve this problem, you can try the following:

* Update the anchor of the latest version : Make sure your anchor installation is up-to-date with the latest version.

* Check the RPC interface documentation : See [ATTPI API] ( to ensure that you understand how to receive how to get Access to Hashi with the help of the Fetch method.

Compatibility problems: potential cause

Another possible cause of this mistake is a problem with the compatibility between your testing and anchor library. The Fetch method may not work as expected because of the differences in the application or use of API.

* Try an alternative RPC interface : If you have problems with the Fetch method, try using another RPC interface that is compatible with the anchor version you are using.

* Check the documentation of your testing library

: See the documentation of your preferred testing library (eg Web3.py or Solana-API) to see if there are some compatibility problems.

Sample code

To get a recent block hash, you can use the following code fragment:

`javascript

Import anchor from anchor;

Const Connection = Wait Anchor.connect ();

console.log (connection.getlatstblockhash ());

`

Note that this requires the Anchor library and is updated to work with Solana’s RPC RPC interface.

Conclusion

The “Typeerror: Fetch error is not successful in an anchor test” can be authorized by updating anchor to the smallest version, checking the RPC interface document, or attempted alternative RPC interfaces. In addition, you may need to look at the compatibility problems between your testing library and anchor.

Following these steps and experimenting with different approaches, you should be able to successfully get SOLANA recent blocks by using anchor.