Lesson 6: fund_me = FundMe[-1] not working in fund_and_withdraw.py script

[nikhsha]

When trying to run fund_and_withdraw.py script from terminal, I get the following error:

Running 'scripts/fund_and_withdraw.py::main'...
  File "brownie/_cli/run.py", line 50, in main
    return_value, frame = run(
  File "brownie/project/scripts.py", line 103, in run
    return_value = f_locals[method_name](*args, **kwargs)
  File "./scripts/fund_and_withdraw.py", line 24, in main
    fund_me = FundMe[-1]
  File "brownie/network/contract.py", line 173, in __getitem__
    return self._contracts[i]
IndexError: list index out of range

I've already run deploy.py successfully and the contract is visible on my local Ganache client. This error doesn't seem to occur when I deploy on Rinkeby, despite nothing else changing. How can I avoid this so I can test on local?

[cromewar]

Yes, this is something that could happen usually, just don't use the [-1] and deploy it before the rest of the commands.

[nikhsha]

That doesn't seem to work for me

[cromewar]

Could you please share your entire deploy script?

[nikhsha]

from brownie import FundMe, MockV3Aggregator, network, config
from scripts.helpful_scripts import (
    get_account,
    deploy_mocks,
    LOCAL_BLOCKCHAIN_ENVIRONMENTS,
)
from web3 import Web3


def deploy_fund_me():
    account = get_account()
    # pass the price feed address to our fundme contract
    # if on a persistent network like Rinkeby, use the associated address, otherwise use mocks
    if network.show_active() not in LOCAL_BLOCKCHAIN_ENVIRONMENTS:
        price_feed_address = config["networks"][network.show_active()][
            "eth_usd_price_feed"
        ]
    else:
        print(f"The active network is {network.show_active()}")
        deploy_mocks()
        price_feed_address = MockV3Aggregator[-1].address

    fund_me = FundMe.deploy(
        price_feed_address,
        {"from": account},
        publish_source=config["networks"][network.show_active()].get("verify"),
    )
    print(f"Contract deployed to {fund_me.address}")

    return fund_me


def main():
    deploy_fund_me()

[Mbazu-Daniel]

I have this same error, have you been able to solve this? @nikhsha

[cromewar]

Sorry for the delay.
Instead of using:
fund_me = FundMe[-1]

import

deploy_fund_me():

and use it on that line.

Also, before anything try deleting the build folder an running again.