Missing returns data: Potential error in Ethereum Hardhat and Ganache
Ethereum, like any other blockchain platform, is not immune to errors. Missing information may occur in connection with the popular development environment of Hardhat, Ethereum smart contracts. This error occurs when the agreement tries to return the incorrect OPCOCE but will not comply with the necessary returned information.
Topic: Missing to returns data
When the shop goes wrong in an Ethereum -intelligent contract, the implementation motor of the contract throws an exception. In this case, the exception is typically a “aircraft period” for VM (virtual machine) error. The error message usually shows that the VM encountered an incorrect opco. Sometimes, however, the underlying question can be more complex and require more information.
Hardhat and Ganache: Environment
Hardhat is a developmental environment designed for intelligent contract development by using solidity. It is based on web3.JS and provides tools such as ganache to local Testing Contracts, without taking them into mention. When using hardhat or ganache, you rely on their internal government management systems to maintain a virtual machine.
Problem: Missing Returns Data in Hardhat/Ganache
The lack of return data in hardhat and Ganache is particularly problematic as it can cause unexpected behavior or errors when trying to recover from the contract. The “Revertdata” field of the error object may be empty or empty, indicating that the contract could not be able to retrieve the necessary return information.
Example error
Here is an example of what the error message may look like:
`Json
{
“Error”: {
“Message”: “VM exception during event processing: Invalid OPCOCE”,
“Stack”: [
“Runtimimeerror: VM exception while processing opcode [0x …] in index 0”
–
},
“Info”: {
“Datarevert”: null // or an empty string
}
}
`
In this case, the agreement tried to return the incorrect opko, but could not be able to retrieve the necessary return information (datevert).
Troubleshooting
In order to resolve the intervention, the information errors in hardhat and ganache:
- Please check your error message : Check the stack print to identify which opcode will cause the problem.
2
- Use the
revertdatafield : Check if therevertdatafield exists is not empty. If so, update your code to pick up the necessary returns.
Best Practices
Minimizing errors in the absence of data returning data:
- Test in local environments
: Use hardhat or ganache locally before you have taken the contracts in the mention.
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Knowing the potential problem of missing information can take action to prevent this error and fail, ensuring a more reliable and maintained intelligent agreement in Ethereum environments such as hardhat and ganache.