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Title:
Metamask: Metamask – RPC Error: Download, Simple Minion NFT DAP
Introduction
As a developer who builds a simple non -horrible token (NFT), which is written on DAPP to collect funds, I encountered an unexpected problem with my implementation. In this article, I will describe the steps I have taken to help out and resolve the error “RPC: Department” which occurred with the interaction with my intelligent contracts of Polygon Testnet and Ethereum Testnet.
the problem
While I joined my front-end with my smart contracts using Metamask as a RPC client, I encountered an unexpected error. The problem made me encounter a “performance” error, which meant that the performance of the contract functions were canceled due to a divergence or an internal condition which has not been met.
The decision
To resolve this problem, I first examined my code and contracts for any potential error or inconsistency that could contribute to the problem. After examining my code, I realized that there was a slight error in the context of my contract. In addition, I had created a simple mining function in one of my contracts which was to cut NFT.
To resolve this problem, I changed the function of my contract contract to return the NFT Cup instead of trying to execute it directly. This change allowed me to resolve the “RPC: reconciliation” error and the DAPP successfully deployed.
Here is an example of a high level of modified code:
`Solidness
Yield of contracts {
// ...
MINE function () non -resenting public {
// nft to mint
Mintnft ();
}
Function Mintnft () Internal return (address) {
// return nft to the user
}
}
'
Deployment and integration
With the solution to the problem, I unfolded the two contracts for Polygon Testnet and Ethereum Testnet. On Testnet, I used Metamask as a RPC client to interact with my smart contracts.
Here is an example of how I joined my front-end with smart contracts using Metamask:
Javascript
Import {Deployer} of "Ethers";
Import * as web3 from "web3";
Const Deployer = New Deployer ();
Const Network = Depluyer.getchainbynumber (2); // 2 represents Ethereum Testnet
// Deploy the Polygon TESTNET contract
Depoyer.Deploy (Mining) .then ((address) => {
Console.log (address);
});
// unfold an ETHEREUM TESTNET contract
Network.Connect ('Goerli'). Depoyer.deploy (Yield) .then ((Address) => {{{{{
Console.log (address);
});
` ‘
Conclusion
In this article, I demonstrated how to resolve an unexpected error “RPC Error: Performance” which concluded my smart contracts with Polygon Testnet and Ethereum Testnet. By modifying the “mining” function in one of my contracts and using Metamask as an RPC customer, we were able to successfully deploy DAPP. This experience highlights the importance of the double verification code and the configuration of the error contract, which may not be obvious immediately.
I hope this article helps others that build such projects!