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Metamka: smart contract vs code not connected to Ethereum test network
Do you use Metamk and Solidity to create smart contracts for your Ethereum projects? If so, you are probably known for setting the local Ethereum network in the VS code. However, when trying to test your contract for the Metamk Ethereum Test Network (ETN), you may face problems such as Chainid’s address.
In this article, we will explore why Metamk is not cooperating with the ETN and will provide solutions to solve the problem.
Why is my Metamk connection not working?
The most common reasons for the failure of Metamask’s connection are:
1
Incorrect chain ID
: The level of the contract circuit must be matched with one set in Metamk account settings.
- Insufficient gas : The Bytecode contract may not be compatible with the available gas benefit, causing errors by transmitting the contract.
3
ETN network configuration questions : ETN network configuration may not be properly set to your contract.
debugging and solutions
Let’s survive each of these possible questions and give solutions:
1. Incorrect chain ID
The Chainid address in your contract should have matched Metamk account settings.
* Metamk Account Settings : Open Metamka, go to the “Account” tab, and click “Network”. Find and select the Ethereum network you want to use.
* Contract Code : Make sure the “Chainid” field corresponds to the value set in your metamk account settings. For example:
`SOLIDITY
Pragma Solidity ^0.8.0;
Contract MyMartContract {
// …
}
`
In this case, as we use Solidity 0.8.0, Ethereum’s default circuit ID is 1.
2. Insufficient gas
If the Bytecode contract is not compatible with the available gas benefit when transmitting the contract may result in errors.
* Check gas benefit : Make sure your contract has enough gas to fulfill its bytekod.
* Check the Contract Code : Double check that your contract byte is correct and corresponds to the Solidity Compiler generated.
* Increase gas : If you are missing gas, try to increase it using a keyword gas" or a gas calculator like etherscan.
3. Etn network configuration problems
Configuration may not be properly set for your contract.
* Check ETN Network Settings : Check that ETN network settings Metamk matches your local Ethereum network.
* Check local ETN : Before placing ETN, check the contract locally using the "TestNet" option.
Example of use of use
Here is a simple example of a stability contract with a mismatch of the chain address:
SOLIDITY
Pragma Solidity ^0.8.0;
Contract MyMartContract {
event Myevent (uint256 _Chainid);
mapping (uint256 => uint256) Public Myvalues;
mapping (address => uint256) public myvaluesfromtestnet;
Function SETCHAINID (UINT256 Chainid) public {
request (Chainid! = 1, “Invalid Chain ID”);
emits Myevent (Chainid);
}
Function GetMyvalue (UINT256 _Chainid) Public view returns (UINT256) {
if (_chainid == 1) {// chain ID mismatch
return ();
}
return myvalues [_chainid];
}
}
`
In this example, the contract function “Setchainid” accepts the chain address that is not 1. When trying to get the value from the ETN, you will get a mistake, as the Baitekods contract does not match one in Metamask.
Conclusion
To solve the problem of failure of the ETN Metamask connection, make sure your contract Chainid address coincides with the settings of the Metamk account. Check the gas benefit and check the contract code to avoid errors. In addition, check the ETN network configuration settings and check locally before placing the ETN.