Ethereum: Non -valid operation code error in the intelligent referee and binance chain
As a developer that works in DAPPS based on Ethereum, I have probably encountered problems with interaction with the intelligent contracts used in Binance Smart Chain (BSC) and referee. Such a problem that plagued developers is the error of “non -valid operating code”, which can occur when proper contracts are used in these networks.
In this article we deal with the error of “non -valid operation code”, since it is caused by non -valid operation codes, and we provide instructions on errors correction and problem solving in their BSC and ARB projects.
What is an unparalleled operation code error?
The “non -valid opcode” error occurs when a contract tries to call an OP code that does not exist. This can happen for several reasons, including:
- Erroneously defined OP codes
- Non -existing operation codes or functions
- Arguments outside the area can be adopted
In the context of contracts represented, this error often occurs when the bytecode (virtual machine) of the Ethereum virtual machine is used, which is generated by a power contract.
Causes of an Operating Code error in BSC
In Binance Smart Chain (BSC), errors date back to several factors through non -valid operation codes:
* FALSE OPERATION CODES : If a contract defines an OP code that is not available in the EVM, it shows an “unparalleled operation code” error.
* Codes or functions of non -existing operations : If a proxy contract calls an OP code or a function that is not defined in its bytecode code, it causes an error of “non -valid operation code.”
Causes of an operational code error in the referee
In the referee, the errors caused by the non -valid operation codes can be lit:
* FALSE OPERATION CODES : Similar to BSC, incorrect operation codes can lead to the error “Code of Operation Non Valid”.
* Arguments outside a range : An argument that is outside the valid area for an operation code or specific function call leads to an “elbow of options not valid”.
Problem solution steps
Follow these errors resolution steps to remedy the operation code of operating code in BSC and the referee:
1. Verify the contract code
Before providing a contract for BSC or ARB, verify your source code to ensure that all operating codes are correctly defined and that there is no decisive functionality.
2. Verify the non -existing operation codes
Make sure the contract defines all the necessary operation codes and functions before the provision.
3 .. Verify the argument area
Make sure the argument areas for OPCODE calls coincide with the expected area. For example, if an operation code requires a certain type of value (for example, UINT256), make sure the contract code contains this functional call with the correct arguments.
4. Use Ethers.js or Web3 Library
If you interact with intelligent contracts, you must use libraries such as Ethers.js or web3 to validate and renew your code before providing. These libraries offer functions such as:
- Code validation: Verify syntax errors and non -valid operation codes
- Argumentation: the arguments are found in valid areas
5.
When fulfilling an “non -valid” OPCODE error in this way, it can diagnose the problem more effectively.
Diploma
Invaluable operation code errors can be frustrating if you work in Ethereum based on DAPPS, but it is relatively easy to solve with the correct purification tools and the knowledge of EVM-betecode. Following these steps to remedy the error, developers can identify and solve problems that cause non -valid operation codes in their BSC and ARB projects.
Stay up to date with the latest developments in the development of Ethereum and the smart contract following serious sources such as Ethereum Foundation, Web3.org and Dupadar.com.
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Additional resources
- Ethers.js: A library for interaction with smart contracts from Ethereum.
- Web3.js: A JavaScript library for interaction with Ethereum Blockchain.
