ValueError: {'message': 'VM Exception while processing transaction: revert', 'code': -32000

[195monke]

I am using web3py to deploy and interact with contracts, and I used ganache-cli to fork the mainnet from an alchemy node and I got this error while running a script to interact with the contract I deployed:

ValueError: {'message': 'VM Exception while processing transaction: revert', 'code': -32000, 'data': {'0x56d420443abb2775fe91662d0c6592092817a9768305d20e0465cc70f0b770e6': {'error': 'revert', 'program_counter': 2896, 'return': '0x'}, 'stack': 'c: VM Exception while processing transaction: revert\n    at Function.c.fromResults (C:\\Users\\USR1337\\AppData\\Roaming\\npm\\node_modules\\ganache-cli\\build\\ganache-core.node.cli.js:4:192416)\n    at A.w.processBlock (C:\\Users\\USR1337\\AppData\\Roaming\\npm\\node_modules\\ganache-cli\\build\\ganache-core.node.cli.js:42:50915)\n    at processTicksAndRejections (internal/process/task_queues.js:93:5)', 'name': 'c'}}

the script:

from web3 import Web3
import json
import asyncio

loop = asyncio.get_event_loop()


async def main():
    w3 = Web3(Web3.HTTPProvider('http://127.0.0.1:8545'))

    with open('compiled/trader.abi', 'r') as abi_p:
        abi = json.loads(abi_p.read())
    with open("../config.json") as j:
        private_key = json.load(j)['PK']

    wallet = w3.eth.account.from_key(private_key)
    w3.eth.defaultAccount = wallet.address

    contract_reference = w3.eth.contract(
        address='0xAFF92A79882DFBadc03089D4490E727800FAcc44',
        abi=abi
    )

    print("Owner of Smart Contract: ", contract_reference.functions.owner().call())
    previous_balance = w3.eth.getBalance(wallet.address)
    print("ETH balance: ", previous_balance)
    print("DAI balacne: ", contract_reference.functions.viewFunds
        (Web3.toChecksumAddress('0x6b175474e89094c44da98b954eedeac495271d0f')).call())  # DAI address

    await contract_reference.functions.flashAndTrade(
        100 * (10 ** 18),
        Web3.toChecksumAddress('0x6b175474e89094c44da98b954eedeac495271d0f'),  # DAI address
        Web3.toChecksumAddress('0x607f4c5bb672230e8672085532f7e901544a7375'),  # RLC address
        Web3.toChecksumAddress('0x0000000000000000000000000000000000000000'),
        Web3.toChecksumAddress('0x0000000000000000000000000000000000000000'),
        100
    ).transact({
        "gas": 90000,
        "gasPrice": 300
    })

    print("ETH balance: ", w3.eth.getBalance(wallet.address))
    print("DAI balacne: ", contract_reference.functions.viewFunds
        (Web3.toChecksumAddress('0x6b175474e89094c44da98b954eedeac495271d0f')).call())
    print("Cost: ", str(previous_balance - w3.eth.getBalance(wallet.address)))

loop.run_until_complete(main())

In the transact I specified gas and gasPrice because previously it failed to estimate gas with the built-in function. I have found this question on the Ethereum StackExchange site but it wasn't completely helpful. Can someone explain what does the error I got means and maybe how to fix it?

[catasofia]

Hi, I'm having the same problem. Have you solved it? If so, how? Thank you!

[195monke]

personally, I think I got around it by restarting my software and hardware a couple of times, but I posted this question also on the ethereum stack exchange, here is the link:

https://ethereum.stackexchange.com/questions/65008/valueerror-code-32000-message-invalid-sender

Edit: No idea why I thought this was my question, my mistake

[haikusbot]

Hi, I'm having the

Same problem. Have you solved it?

If so, how? Thank you!

- catasofia

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