Lesson 13 : call_Exception error

[zeeshan615]

when i run "yarn hardhat run scripts/aaveBorrow.js --network localhost" i encountered an

Error: call revert exception [ See: https://links.ethers.org/v5-errors-CALL_EXCEPTION ] (method="getLendingPool()", data="0x", errorArgs=null, errorName=null, errorSignature=null, reason=null, code=CALL_EXCEPTION, version=abi/5.7.0)
................

link to my repository> https://github.com/zeeshan615/hardhat-defi-fcc

plz help

[Nlferu]

Hi @zeeshan615

Are you running your local node before executing this script on local network? As it seems your contract doesnt exist on given chain.

[zeeshan615]

yes local node is running..

[alfaqi]

I think the issue with localhost,

hardhat: {
	chainId: 31337,
	forking: {
		url: MAINNET_RPC_URL,
	},
},
localhost: {
	chainId: 31337,
},

delete it and try again

hardhat: {
	chainId: 31337,
	forking: {
		url: MAINNET_RPC_URL,
	},
},

[alfaqi]

are you using endpoint of mainnet or testnet

forking: {
url: MAINNET_RPC_URL,
},

it will be like this in .env file

MAINNET_RPC_URL=https://eth-mainnet.g.alchemy.com/v2/YOUR-KEY

[zeeshan615]

mine is

MAINNET_RPC_URL=https://mainnet.infura.io/v3/my-key

[zeeshan615]

now i changed it to
MAINNET_RPC_URL=https://eth-mainnet.g.alchemy.com/v2/MY-KEY

[alfaqi]

in getWeth function,

const iWeth = await ethers.getContractAt(
   "IWeth",
   "0xdd13E55209Fd76AfE204dBda4007C227904f0a81",
   deployer
)

you have to use address of WETH
0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2
instead of this
0xdd13E55209Fd76AfE204dBda4007C227904f0a81

which is defined in helper-hardhat-config.js as wethToken

[zeeshan615]

bravo..... 👍 👍 👍

[zeeshan615]

address of WETH was unrecognizable.. thanks man