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Error: You couldn’t get the recent block hash in Solana using anchor test
The error message “Typeeror: Fick failed in the anchor test” indicates that the anchor test library cannot recover a recent block hash of the Red Solana. This problem may arise due to several reasons, including changes in the RPC interface (remote procedure call) or compatibility problems with the ‘Fetchmethod.
In this article, we will explore possible solutions to resolve the error and we will successfully obtain recent blocks in Solana using Anchor.
What is a block hash?
A block hash is a unique digital fingerprint of a block in a block chain. It represents a specific transaction and is used to track the history of network transactions.
Changes of the RPC interface: a potential cause
The 'Fetch method has undergone changes in recent RPC interfaces, which can affect the way it accesses block hashes. Anchor uses a different API to other test libraries, such as web3.py or Solana-Api. To solve this problem, you can try the following:
* Update the anchor of the latest version : Make sure your anchor installation is updated with the latest version.
* Verify the Documentation of the RPC interface
: See the [anchoring API documentation] ( to ensure what you understand how access to block hashes using the fetch method.
Compatibility problems: a possible cause
Another possible reason for this error is a compatibility problem between its test library and anchor. The ‘Fetchmethod may not work as expected due to the differences in the implementation or use of API.
* Try an alternative RPC interface : If you are experiencing problems with the 'Fetch method, try to use another RPC interface that is compatible with the version of the anchor you are using.
* See the documentation of your test library : See the documentation for your preferred test library (for example, web3.py or solana-opi) to see if there are known compatibility problems.
Example code
To obtain a recent block hash, you can use the following code fragment:
`JavaScript
import anchor of 'anchor';
const connection = alea anchor.connect ();
Console.log (connection.getlatestblockhash ());
Keep in mind that this requires theAnchor` library and has been updated to operate with the latest RPC of Solana interface.
Conclusion
The error “Typeerror: Fick failed in the anchor test” can be resolved by updating the anchor to the latest version, verifying the documentation of the RPC interface or trying alternative RPC interfaces. In addition, it is possible that they must address the compatibility problems between their test library and the anchor.
Following these steps and experimenting with different approaches, you should successfully obtain recent block hash in Solana using Anchor.