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Metamask: Uncaught (in promise) Error: Internal JSON-RPC error. { “code”: -32000, “message”: “Execution reverted”, “data”: “0x” }

Published by Terlumun Aondover on February 7th, 2025.

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Metamask Error: Unlaid (in presence) Error: Internal error JSON-RPC

Are you experiencing errors when interacting with a decentralized application (DAPP) built in the Ethereum blockchain using Metamask? Specifically, you are finding a message “JSON-RPC Error”. In this article, we will divide what is happening and provide steps to solve problems and solve the problem.

** What is the json-rpc error?

JSON-RPC is a protocol used to interact with decentralized applications (Dapps) in blockchain Ethereum. It allows development to send data to smart contracts or interact with them programmingly using JavaScript libraries as Metamask.

Metamask Error: Unlaigh (en promise) Error: internal error json-rpc

When you try to call a function of an implanted contract, Metamask launches an “internal JSON-RPC error”. This error usually occurs when:

The contract code does not support JSON-RPC.

There is a problem with the transaction or signature data.

The contract has been reversed or landson.

The not captured error message (in promise)

The error message you have provided indicates that there is a problem with the execution of the implemented contract function. Specifically:

Code: -32000

Message: ‘Reversed Execution’

Date: ‘0x’ (which suggests a transaction or call result)

Step problem solving

Check the contract code

: Check that your contract implemented is written in solidity and supports JSON-RPC. You can check this using remix, truffle suite or other tools to deploy the contract.

Check the transaction date
: Check that all required data (eg, data) is included in the transaction or call result. If there is a problem with the signature of the transaction or the data structure, this may cause JSON-RPC errors.




 Check that there are reversed : When a function is called a contract implemented, it can revert due to various reasons such as invalid code, insufficient funds or gas limits. Make sure your contract has enough gas and that the function has no conditional statement that may lead to reversed.


 Additional Tips

Use theconsole.log` method to inspect the transaction data and the call result.

Try to call a different function of the same contract to rule out specific questions.

If you are still facing problems, considering the metamask update or changing to a new version with improved JSON-RPC support.

By following these problem-solving steps and techniques, you will be able to solve your problem “JSON-RPC internal error when interacting with contracts implanted in Blockchain Ethereum using metamask. Happy coding!