There is a lack of restoration data: potential error in Ethereum Hardhat and Ganache
Ethereum, like any other blockchain platform, is not resistant to errors. In the context of Hardhat, a popular programming environment for Ethereum Smart Contracs, missing return data may occur. This error occurs when the contract tries to restore an incorrect operational code, but does not recover the necessary data on the search.
Problem: Lack of data
When the transaction goes wrong in the Ethereum Smart contract, the contract performance engine throws an exception. In this case, the exception is usually “Runtimeerror” because of the virtual machine error (virtual machine). An error message usually indicates that a virtual machine has encountered an incorrect operational code. Sometimes, however, the basic problem can be more complex and require additional data.
Hardhat and Ganache: environment
Hardhat is a programming environment designed for the development of the Ethereum Smart contract using reliability. It is based on web3.js and provides tools such as ganache for local contract tests without implementing them on the mainnet. By using Hardhat or Ganache, you rely on their internal state management systems to keep the virtual machine.
Problem: Lack of data in Hardhat/Ganache
In Hardhat and Ganache, the lack of returning data is particularly problematic, because it can cause unexpected behavior or errors when trying to recover after the contract. The “revertdata” field of the error object may be empty or zero, which indicates that the contract was not able to recover the necessary data about the revision.
Sample error
Here is an example of what an error message may look like:
`Json
{
"mistake": {
"Message": "VM exception during transaction processing: incorrect operational code",
"pile": [
"Runtimeerror: VM exception when processing the operational code at the 0 [0x ...] index"
]
},
"Information": {
"Datarevert": null // or empty string
}
}
In this case, the contract tried to restore an incorrect operational code, but was not able to recover the necessary data for revision (“Datarevert”).
problem solving
To solve the missing data errors in Hardhat and Ganache:
1.
2.
- If this is the case, update the code to recover the necessary revision data.
best practices
To minimize errors when working with missing data:
- Test in local environments : Use hardhat or ganache locally before implementing contracts on Mainnet.
2.
Making the potential issue of missing revert data, developers can take steps to prevent and solve problems with this error, providing more reliable and maintaining intelligent development of contracts in Ethereum environments such as Hardhat and Ganache.