Gas estimation failed: 'invalid opcode: INVALID'. This transaction will likely revert. If you wish to broadcast, you must set the gas limit manually

I adapted the code from this tutorial for my needs. It works fine at rinkeby network, but I am getting an error when I try to run it on Mumbai network.

AdvancedCollectible.sol >>

pragma solidity 0.6.6;

import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@chainlink/contracts/src/v0.6/VRFConsumerBase.sol";


contract AdvancedCollectible is ERC721 {

    bytes32 internal keyHash;
    uint256 public fee;
    event requestedCollectible(address indexed senderAdd);

    uint256 public tokenCounter;

    struct Remedio { 
      string nome_medicamento;
      uint256 dosagem;
      string farmaceutica;
      string posologia;
   }   


    enum Breed{PUG, SHIBA_INU, ST_BERNARD}
    mapping(uint256 => address) public requestIdToSender;
    mapping(uint256 => Breed) public tokenIdToBreed;
    mapping(uint256 => Remedio) public tokenIdToRemedio;
    mapping(uint256 => uint256) public requestIdToTokenId;

    

    constructor() public
        ERC721("GeradorReceitasMedicas", "Receita")
    {
        
        tokenCounter = 0;
    }

    

    function createCollectible(string memory nomeMedicamento, uint256 dosagem, string memory farmaceutica, string memory posologia) 
    public returns (bytes32) {
        
        uint256 newItemId = tokenCounter;

        tokenCounter = tokenCounter + 1;

        Remedio memory newRemedio = Remedio({
           nome_medicamento: nomeMedicamento,
           dosagem: dosagem,
           farmaceutica: farmaceutica,
           posologia: 'posologia'
        });

        requestIdToSender[newItemId] = msg.sender;
        address receitaOwner = requestIdToSender[newItemId];

        _safeMint(receitaOwner, newItemId);

        tokenIdToRemedio[newItemId] = newRemedio;

        emit requestedCollectible(receitaOwner);

    }
    
    

}

LinkTokenInterface.sol:

pragma solidity ^0.6.6;

interface LinkTokenInterface {
  function allowance(address owner, address spender) external view returns (uint256 remaining);
  function approve(address spender, uint256 value) external returns (bool success);
  function balanceOf(address owner) external view returns (uint256 balance);
  function decimals() external view returns (uint8 decimalPlaces);
  function decreaseApproval(address spender, uint256 addedValue) external returns (bool success);
  function increaseApproval(address spender, uint256 subtractedValue) external;
  function name() external view returns (string memory tokenName);
  function symbol() external view returns (string memory tokenSymbol);
  function totalSupply() external view returns (uint256 totalTokensIssued);
  function transfer(address to, uint256 value) external returns (bool success);
  function transferAndCall(address to, uint256 value, bytes calldata data) external returns (bool success);
  function transferFrom(address from, address to, uint256 value) external returns (bool success);
}

DeployAdvanced.py:

from brownie import AdvancedCollectible, accounts, network, config
from scripts.helpful_scripts import fund_advanced_collectible

def main():
    print(config['wallets']['from_key'])
    dev = accounts.add(config['wallets']['from_key'])
    print(network.show_active())
    #print(config['networks'][network.show_active()]['host'])
    publish_source = False
    print(config['wallets']['from_key'])
    advanced_collectible = AdvancedCollectible.deploy(
        {"from": dev},
        publish_source=publish_source,
    )

    fund_advanced_collectible(advanced_collectible)

    return advanced_collectible

helpful_scripts.py:

from brownie import AdvancedCollectible, accounts, config, interface, network



def fund_advanced_collectible(nft_contract):
    dev = accounts.add(config['wallets']['from_key'])
    link_token = interface.LinkTokenInterface(
        config['networks'][network.show_active()]['link_token']
    )
    link_token.transfer(nft_contract, 1000000000000000000, {"from": dev})

brownie-config.yaml:

exclude SafeMath when calculating test coverage

https://eth-brownie.readthedocs.io/en/v1.10.3/config.html#exclude_paths

reports: exclude_contracts: - SafeMath dependencies:

  • smartcontractkit/chainlink-brownie-contracts@1.1.1
  • OpenZeppelin/openzeppelin-contracts@3.4.0 compiler: solc: remappings:
    • '@chainlink=smartcontractkit/chainlink-brownie-contracts@1.1.1'
    • '@openzeppelin=OpenZeppelin/openzeppelin-contracts@3.4.0'

automatically fetch contract sources from Etherscan autofetch_sources: True dotenv: .env

set a custom mnemonic for the development network networks: default: development kovan:

vrf_coordinator: '0xdD3782915140c8f3b190B5D67eAc6dc5760C46E9'
link_token: '0xa36085F69e2889c224210F603D836748e7dC0088'
keyhash: '0x6c3699283bda56ad74f6b855546325b68d482e983852a7a82979cc4807b641f4'
fee: 100000000000000000
oracle: '0x2f90A6D021db21e1B2A077c5a37B3C7E75D15b7e'
jobId: '29fa9aa13bf1468788b7cc4a500a45b8'
eth_usd_price_feed: '0x9326BFA02ADD2366b30bacB125260Af641031331'   rinkeby:
vrf_coordinator: '0xb3dCcb4Cf7a26f6cf6B120Cf5A73875B7BBc655B'
link_token: '0x01be23585060835e02b77ef475b0cc51aa1e0709'
keyhash: '0x2ed0feb3e7fd2022120aa84fab1945545a9f2ffc9076fd6156fa96eaff4c1311'
fee: 100000000000000000
oracle: '0x7AFe1118Ea78C1eae84ca8feE5C65Bc76CcF879e'
jobId: '6d1bfe27e7034b1d87b5270556b17277'
eth_usd_price_feed: '0x8A753747A1Fa494EC906cE90E9f37563A8AF630e'
host: 'https://rinkeby.infura.io/v3/${WEB3_INFURA_PROJECT_ID}'   mumbai:
link_token: '0x326C977E6efc84E512bB9C30f76E30c160eD06FB'
eth_usd_price_feed: '0x0715A7794a1dc8e42615F059dD6e406A6594651A'   polygon-test:
link_token: '0x326C977E6efc84E512bB9C30f76E30c160eD06FB'
eth_usd_price_feed: '0x0715A7794a1dc8e42615F059dD6e406A6594651A'   binance:
# link_token: ??
eth_usd_price_feed: '0x9ef1B8c0E4F7dc8bF5719Ea496883DC6401d5b2e'   binance-fork:
eth_usd_price_feed: '0x9ef1B8c0E4F7dc8bF5719Ea496883DC6401d5b2e'   mainnet-fork:
eth_usd_price_feed: '0x5f4eC3Df9cbd43714FE2740f5E3616155c5b8419'   matic-fork:
eth_usd_price_feed: '0xF9680D99D6C9589e2a93a78A04A279e509205945' wallets:   from_key: ${PRIVATE_KEY}   from_mnemonic: ${MNEMONIC}

settings: gas_limit: "100000000000"

When I run it on Rinkeby, I get (run command brownie run .\scripts\advancedCollectible\deploy_advanced.py --network rinkeby):

INFORMAÇÕES: não foi possível localizar arquivos para o(s) padrão(ões) especificado(s). Brownie v1.18.1 - Python development framework for Ethereum

ContratoNftProject is the active project.

Running 'scripts\advancedCollectible\deploy_advanced.py::main'... fdb0ee33d87a414d57235c1eb5df7b3cd15a69c3041214584e4eb2d2b220e2ef rinkeby fdb0ee33d87a414d57235c1eb5df7b3cd15a69c3041214584e4eb2d2b220e2ef Transaction sent: 0xf3cbcf650ab9b4408f8e795469ffa60a61f5943ab485ec133e3650fece7545db
Gas price: 1.499999222 gwei Gas limit: 2377218 Nonce: 67
AdvancedCollectible deployed at: 0x5D37fc76D54880F878a395755df5101B644B655a

C:\Users\p\AppData\Roaming\Python\Python39\site-packages\brownie\network\contract.py:1180: BrownieCompilerWarning: 0x5D37fc76D54880F878a395755df5101B644B655a: Locally compiled and on-chain bytecode do not match! warnings.warn( Transaction sent: 0x74a64ac1449a597584bbca8dc0947e80a6ad042ca68453da6e550a0dbbfe67da
Gas price: 1.499999221 gwei Gas limit: 56992 Nonce: 68
LinkToken.transfer confirmed Block: 10631644 Gas used: 51811 (90.91%)

When I run it on Mumbai, I get (run command brownie run .\scripts\advancedCollectible\deploy_advanced.py --network polygon-test):

INFORMAÇÕES: não foi possível localizar arquivos para o(s) padrão(ões) especificado(s). Brownie v1.18.1 - Python development framework for Ethereum

ContratoNftProject is the active project.

Running 'scripts\advancedCollectible\deploy_advanced.py::main'... fdb0ee33d87a414d57235c1eb5df7b3cd15a69c3041214584e4eb2d2b220e2ef polygon-test fdb0ee33d87a414d57235c1eb5df7b3cd15a69c3041214584e4eb2d2b220e2ef Transaction sent: 0x6915605b9dfb985b8ef078e3268a6b6e6e2e0b95d3d25ce8e5912c7a71db84d7
Gas price: 1.759579396 gwei Gas limit: 2377218 Nonce: 13
AdvancedCollectible.constructor confirmed Block: 26234140 Gas used: 2161108 (90.91%) AdvancedCollectible deployed at: 0xdbae4544699a953f2b28AFfBA77008Fd9eb1B4Cf

File "C:\Users\p\AppData\Roaming\Python\Python39\site-packages\brownie_cli\run.py", line 51, in main return_value, frame = run( File "C:\Users\p\AppData\Roaming\Python\Python39\site-packages\brownie\project\scripts.py", line 103, in run return_value = f_locals[method_name](*args, **kwargs) File ".\scripts\advancedCollectible\deploy_advanced.py", line 16, in main fund_advanced_collectible(advanced_collectible) File ".\scripts\helpful_scripts.py", line 10, in fund_advanced_collectible link_token.transfer(nft_contract, 1000000000000000000, {"from": dev}) File "C:\Users\p\AppData\Roaming\Python\Python39\site-packages\brownie\network\contract.py", line 1710, in call return self.transact(*args) File "C:\Users\p\AppData\Roaming\Python\Python39\site-packages\brownie\network\contract.py", line 1583, in transact return tx["from"].transfer( File "C:\Users\p\AppData\Roaming\Python\Python39\site-packages\brownie\network\account.py", line 644, in transfer receipt, exc = self._make_transaction( File "C:\Users\p\AppData\Roaming\Python\Python39\site-packages\brownie\network\account.py", line 727, in _make_transaction
raise VirtualMachineError(e) from None File "C:\Users\p\AppData\Roaming\Python\Python39\site-packages\brownie\exceptions.py", line 93, in init raise ValueError(str(exc)) from None ValueError: Gas estimation failed: 'invalid opcode: INVALID'. This transaction will likely revert. If you wish to broadcast, you must set the gas limit manually.

Why am I getting this error on Mumbai Network? Is it possible to fix the error above?

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